Gem Patents (Class 63/32)
  • Patent number: 11839273
    Abstract: An ornamental device includes: diamonds disposed on a single support element in a specific physical arrangement, all the diamonds in the specific physical arrangement having a blue fluorescent equal to or stronger than strong blue, wherein all the diamonds in the specific physical arrangement shining clear under a visible light, and shining blue under ultraviolet radiation keeping the specific physical arrangement distinguished from a group of diamonds in the specific physical arrangement, the group of diamonds comprising a mixture of a diamond or diamonds having a blue fluorescence equal to or stronger than strong blue and a diamonds or diamonds not having a blue fluorescent equal to or stronger than strong blue.
    Type: Grant
    Filed: April 14, 2022
    Date of Patent: December 12, 2023
    Inventor: Yoshiko Tanaka
  • Patent number: 11576471
    Abstract: A sparkling, oblong-shaped precious stone, such as an emerald or cushion cut diamond is formed by a planar table facet, a girdle, two pairs of long crown facets located between the table facet and the girdle, and the two pairs of long pavilion facets located between the base of the stone and the girdle.
    Type: Grant
    Filed: February 4, 2021
    Date of Patent: February 14, 2023
    Assignee: ECNA, LLC
    Inventor: Christopher Slowinski
  • Patent number: 11491825
    Abstract: A structural color developing member includes: a base material including a surface, at least a portion of which is provided with a fine ridged/grooved structure formed at a constant arrangement pitch, the base material developing a structural color by the fine ridged/grooved structure; and a color developing layer layered on a surface of the fine ridged/grooved structure. The color development from the color developing layer is a hue included in color development of the structural color, and a region of the structural color developing member in which the fine ridged/grooved structure and the color developing layer are provided is visually recognizable in a single hue. Instead of the color developing layer, a polarized reflection layer may be provided.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: November 8, 2022
    Assignee: The Yokohama Rubber Co., LTD.
    Inventor: Ryota Takahashi
  • Patent number: 11475262
    Abstract: A unique secured product identification method, system, and apparatus for product such as precious gemstones prevent counterfeiting by incorporating a marked product with fake identification (ID) mark or fake barcode. Authentication process requires at least two identifying data sets, an overt mark or overt data and covert data. The overt data may be a unique product identifier like a barcode. Covert data may be any additional data derived from the specific product. Additional data points come from a created data point not originally part of the product, or a unique data point already existing in the product but not existing in any other similar product. Product is authenticated when the combination of data sets compared to original data sets creates positive product identification. Authentication may be done with centralized, or de-centralized databases. A partially or non-automated method may be implemented, for example, where a barcode links to a database.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: October 18, 2022
    Assignee: PhotoScribe Technologies, Inc.
    Inventor: David Benderly
  • Patent number: 11452346
    Abstract: The invention relates to a gemstone cut, comprising a crown having a flat table and main crown facets (10-12) being arranged around the table (1) and being inclined relative to the table, a girdle (5) at which the gemstone has its largest transverse dimension, and a pavilion adjoining the girdle from below the girdle and having main pavilion facets (7) around the girdle, whereby the number of the main pavilion facets is odd. The invention also relates to an article comprising a gemstone according to the invention and a method for improving the optical properties of a gemstone.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: September 27, 2022
    Assignee: D. Swarovski KG
    Inventors: Christian Loinger, Günther Blasbichler
  • Patent number: 11395530
    Abstract: A protective apparatus includes a gemstone and a foreign material encapsulated and physically isolated within an interior space of the gemstone. The gemstone is one of a precious gemstone or a semi-precious gemstone or a semi-precious stone.
    Type: Grant
    Filed: July 29, 2020
    Date of Patent: July 26, 2022
    Assignee: GTL COMPANY
    Inventors: Paul Gloyer, Tim Lewis
  • Patent number: 11382392
    Abstract: The invention relates to a gemstone cut, comprising a crown having a flat table and main crown facets (10-12) being arranged around the table (1) and being inclined relative to the table, a girdle (5) at which the gemstone has its largest transverse dimension, and a pavilion adjoining the girdle from below the girdle and having main pavilion facets (7) around the girdle, whereby the number of the main pavilion facets is odd. The invention also relates to an article comprising a gemstone according to the invention and a method for improving the optical properties of a gemstone.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: July 12, 2022
    Assignee: D. Swarovski KG
    Inventors: Christian Loinger, Günther Blasbichler
  • Patent number: 11294110
    Abstract: Methods, apparatus, and systems for fabricating diffractive structures on gemstones for high optical performance are provided. In one aspect, a method includes obtaining a plurality of gemstone characteristics of a gemstone, determining that the gemstone exhibits each of the plurality of gemstone characteristics within a respective predetermined range, identifying a diffractive structure setting associated with a combination of the respective predetermined ranges for the plurality of gemstone characteristics, and fabricating diffractive structures on the gemstone according to the diffractive structure setting.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: April 5, 2022
    Assignee: SPARKLE CUT DIAMONDS, INC.
    Inventors: Mark L. de Naray, Kurt Philip Schoeckert, Lance Richardson
  • Patent number: 11241906
    Abstract: A fidget device is configured to direct a user to engage in a stress-release activity and direct nervous energy in a manner to not created distraction and noise. The technology provides a fidget device having a movable, manipulable object disposed within a sleeve that a user can move back-and-forth and otherwise manipulate through movement within the sleeve. In at least one embodiment, the fidget device is a pen having a marble or ball within the sleeve that is manipulable by the user holding the pen as a fidget device.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: February 8, 2022
    Inventor: Jennifer Hobbs
  • Patent number: 11222420
    Abstract: Systems and methods for processing a plurality of loose gemstones resting on a worksurface are disclosed. The system comprises an image capturing device for capturing an image of the plurality of loose gemstones on the worksurface. The system further comprises a computing device having a non-transitory computer-readable storage medium and a processor. Additionally, the processor is configured by executing a software application to analyze the image to detect edges of objects within the image and generate a diagram representing the detected edges of the gemstones. The processor is further configured to detect, using a trained neural network processing the image and the diagram, individual gemstones within the image and count the individual gemstones detected within the image to determine a gemstone count. The processor is also configured to perform, using an output device, a processing operation on the gemstones as a function of the gemstone count.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: January 11, 2022
    Assignee: Parikh Holdings LLC
    Inventor: Aniket Parikh
  • Patent number: 11185138
    Abstract: Methods, apparatus, and systems for managing optical characteristics of gemstones with diffractive structures are provided. In one aspect, a method includes obtaining a three-dimensional model of a gemstone including representations of surfaces of the gemstone, identifying a region on a surface of the gemstone having an optical value higher than one or more other regions on the surface of the gemstone by analyzing the three-dimensional model of the gemstone, and determining a diffractive structure to be arranged on the identified region of the surface of the gemstone, such that the gemstone with the diffractive structure has a higher optical performance than the gemstone without the diffractive structure. The method can also include fabricating the determined diffractive structure on the identified region of the surface of the gemstone.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: November 30, 2021
    Assignee: SPARKLE CUT DIAMONDS, INC.
    Inventors: George Maltezos, Mark L. de Naray
  • Patent number: 10918175
    Abstract: The invention relates to the field of jewelry, specifically to a diamond with eighty-one facets having a ten hearts and ten arrows inner structure and a cutting method thereof. The diamond comprises a table facet, ten main crown facets and ten main pavilion facets; a crown star facet is disposed at a junction of two adjacent main crown facets with the table facet; a crown small facet is disposed at a junction of two adjacent main crown facets with the crown star facet; a small sector is disposed at a junction of the main crown facet with the crown small facet; and two main pavilion facet auxiliary surfaces are disposed at a junction of two adjacent main pavilion facets. The cutting method comprises a division of a pavilion, a crown and a girdle, the pavilion cutting and the crown cutting. The shaped diamond has very good brilliance, fire and sparkle.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: February 16, 2021
    Assignee: Shenzhen Perfect Love Diamond Co., Ltd.
    Inventors: Kunzhi Zhang, Feng Zhang
  • Patent number: 10736388
    Abstract: A protective apparatus includes a gemstone and a foreign material encapsulated and physically isolated within an interior space of the gemstone. The gemstone is one of a precious gemstone or a semi-precious gemstone or a semi-precious stone.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: August 11, 2020
    Assignee: GTL COMPANY
    Inventors: Paul Gloyer, Tim Lewis
  • Patent number: 10448713
    Abstract: Emerald-cut diamond with length/width of 1.35 to 1.40; table of 55 to 60 percent; corner ratio of 13.5 to 14.5 percent; girdle thickness up to 3 percent; crown main angle of 28 to 45 degrees; first crown break angle of 2 to 6 degrees; second crown break angle of 2 to 6 degrees; pavilion main angle of 43 to 48 degrees; first pavilion break angle of 2 to 5 degrees; and second pavilion break angle of 2 to 5 degrees. Diamonds cut in accordance with these parameters may have light performance 0-grade domains on a grade map with wide crown and pavilion mains ranges. A method cuts the diamond according to the parameters, and may include selecting crown and pavilion main angles from the map, and cutting the diamond sufficiently close to the selected cutting parameters to obtain the light performance grade of 0.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: October 22, 2019
    Inventor: Brian Steven Gavin
  • Patent number: 10362843
    Abstract: A gemstone is provided that has an improved brilliance, especially at the crown portion of the gemstone. The gemstone has a crown angle that is less than an ideal cut round diamond and, preferably the crown angle is less than 27 degrees. By reducing the crown angle of the gemstone, light entering one end of the crown portion may exit the opposite end of the gemstone. In addition, reducing the crown angle reduces the mass necessary for the gemstone. As a result, the gemstone has a width or diameter that corresponds to a larger mass gemstone that is cut according to conventional ideal proportions.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: July 30, 2019
    Inventors: Leonard J. Strnad, II, Yoshihiko Kodama, Yoshiko Kodama
  • Patent number: 10271621
    Abstract: A gemstone with a chaton cut has tapering facets of a crown adjoin a flat table all the way round inclined relative to the table. The facets extend as far as a rondist at which the gemstone has the largest transverse dimension. A pavilion of facets, preferably terminating at a point, adjoins below the rondist. The gemstone is at least partially made of glass, and the crown angle (?) is between 40.5° and 42.5°.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: April 30, 2019
    Assignee: D. Swarovski KG
    Inventors: Maik Froehlich, Karlheinz Eder, Guenther Blasbichler, Markus Sauer
  • Patent number: 10085530
    Abstract: A gemstone has a chaton cut, in which a crown adjoins a flat table and has facets that are inclined downwardly relative to the table all the way round, wherein the crown has main facets that extend substantially from the table as far as a girdle at which the gemstone has the largest transverse dimension. A pavilion of facets, preferably facets converging to a point, adjoins below the girdle. The gemstone consists preferably entirely of topaz, and the angle of the main facets relative to a cross-sectional face arranged parallel to the table is between 32.5° and 34.5°.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: October 2, 2018
    Assignee: D. Swarovski KG
    Inventors: Guenther Blasbichler, Christian Loinger
  • Patent number: 9943144
    Abstract: A cushioned step-cut gemstone is disclosed. The gemstone may include a crown disposed above a girdle and a pavilion disposed below the girdle. The girdle may include twelve straight-edged facets defining four sides and four corners of the girdle, wherein the four sides each comprise one straight-edged facet and the four corners each comprise two straight-edged facets meeting at a corner midpoint. The crown may include a table and two or more rows of step-cut facets between the table and the girdle. The step-cut facets may include side step-cut facets shaped like elongated trapezoids and corner step-cut facets, and each step-cut row includes twelve step-cut facets.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: April 17, 2018
    Assignees: Leon Mege Inc., GemConcepts, Ltd.
    Inventors: Leonid Mezhibovsky, Yoram Finkelstein
  • Patent number: 9439483
    Abstract: A gemstone cut with a table facet, where the gemstone receives existing light from around the viewer and the facets on the bottom of the diamond effectively reflect the existing light back into the eyes of the beholder in such a manner as to maximize light performance and to provide specific optical performance.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: September 13, 2016
    Inventor: Jonathan Weingarten
  • Patent number: 9398791
    Abstract: A sparkling, oblong-shaped precious stone, such as an emerald or cushion cut diamond is formed by providing these diamonds with two long crown surfaces extending at a crown angle and two long pavilion surfaces extending at a pavilion angle, where the crown angle is in the range of 30-36 and the pavilion angle is in the range of 30-34. The crown angle and the pavilion angle are so formed that the crown angle is either equal to or larger than the pavilion angle by an angle that does not exceed 6 degrees.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: July 26, 2016
    Inventor: Christopher Slowinski
  • Patent number: 9248615
    Abstract: A compact, optically double-ended sensor probes with at least one 180° bend provided in the optical fiber in close proximity to a fiber Bragg grating temperature sensor suspends the optical fiber within a casing in such a way that the expansion and contract of the probe casing will not materially influence the temperature reading of the fiber Bragg grating by adding time varying or temperature varying stress components.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: February 2, 2016
    Assignee: KYTON, LLC
    Inventors: Philip R. Swinehart, Mokhtar M. Maklad
  • Patent number: 9138948
    Abstract: A compact, optically double-ended sensor probe with at least one 180° bend provided in the optical fiber in close proximity to a fiber Bragg grating temperature sensor suspends the optical fiber within a casing in such a way that the expansion and contract of the probe casing will not materially influence the temperature reading of the fiber Bragg grating by adding time varying or temperature varying stress components.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: September 22, 2015
    Assignee: KYTON, LLC
    Inventors: Philip R. Swinehart, Mokhtar M. Maklad
  • Publication number: 20150121960
    Abstract: A non-ablative laser machining method and apparatus for cutting facets of a diamond, using a material machining technique involving filamentation by burst ultrafast laser pulses well suited to mass production. Coupled with 3D modeling and the computerized laser machining system, complex geometric surfaces can be created on the diamond. The facets of the diamond need not be planar in configuration, and may incorporate acute as well as oblique angles. This method minimizes the need for diamond polishing, speeds up production, and realizes great reductions in the quantity of lost material from the cutting process.
    Type: Application
    Filed: October 22, 2014
    Publication date: May 7, 2015
    Applicant: ROFIN-SINAR TECHNOLOGIES INC.
    Inventor: S. ABBAS HOSSEINI
  • Patent number: 9025247
    Abstract: An article comprising (i) a substantially flat substrate bearing a set of diffraction gratings, and (ii) a jewelry mounting secured to the substrate. The gratings occupy areas that correspond to a two-dimensional projection of a three-dimensional faceted gemstone. Sub-gratings are sized and positioned so that perceived sub-gratings images overlap. Sub-gratings within each set differs from adjacent sub-gratings with respect to grating wavevector magnitude, so that the overlapped perceived images result in an overall perceived color of sub-grating set. In one embodiment, two or more gratings comprise sub-grating sets having parallel wavevectors; each sub-grating set differs from at least one other with respect to grating wavevector direction. In another embodiment, one or more gratings comprise sub-grating sets having non-parallel wavevectors.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: May 5, 2015
    Assignee: Volonte Jewels LLC
    Inventors: Thomas W. Mossberg, Christoph M. Greiner, Dmitri Iazikov
  • Patent number: 9016089
    Abstract: A heart shaped diamond possessing a hearts and arrows pattern characteristic comprising: eight main crown facets symmetrically aligned relative to one another, with each of the eight main crown facets having a straight edge in parallel alignment with a straight edge of another main crown facet disposed opposite thereto; eight main pavilion facets aligned at a fixed given angle of approximately 45° to each other and converging at a common point corresponding to the center of the diamond; sixteen pavilion half facets aligned at 22.5° with respect to each other, a girdle which is non-uniform and has a substantially unequal thickness throughout the diamond, a table facet, and a multiple number of crown star facets in an arrangement surrounding the table facet.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: April 28, 2015
    Assignee: Worldwide Diamond Trademarks Ltd.
    Inventor: Roni Rydlewicz
  • Publication number: 20150101365
    Abstract: An identifiable mark on a portion of a polished facet of a surface of an article and being identifiable by an optical magnifying viewing device, said identifiable mark comprising a nano-structure formed by a two-dimensional or a three-dimensional lattice of a plurality of discrete nanometer sized recessed or protruded entities, wherein said entities are arranged within a predefined region of said polished facet in a predetermined arrangement in relation to each other and such that an outer interface surface between the facet of the article and air is formed and an inner interface surface between the facet of the article and air is formed. Said predetermined arrangement of said entities is non-uniform and non-periodic arrangement, and wherein said entities are sized and shaped so as to cause optical scattering upon reflection of incident light and the distance from the inner interface surface to the outer interface surface is greater than the amplitude of the non-marked portion of said polished face.
    Type: Application
    Filed: May 23, 2014
    Publication date: April 16, 2015
    Inventors: Koon Chung HUI, Wing Chi TANG, Ho CHING
  • Publication number: 20150059404
    Abstract: The present invention involves the field of jewellery products, and especially, relates to a colourful and bright diamond which comprises an even number of main crown facets and an even number of main pavilion facets. The colourful and bright diamond has a total reflection gross efficiency of two 90% and the optical performance which is 12 times more than the existing ordinary diamonds.
    Type: Application
    Filed: November 8, 2013
    Publication date: March 5, 2015
    Inventors: He Qiantai, Huang Haixin
  • Publication number: 20150059405
    Abstract: The present invention involves the field of jewellery products, and especially, relates to a colourful and bright diamond which comprises an even number of main crown facets and an even number of main pavilion facets. The colourful and bright diamond has a total reflection gross efficiency of two 90% and the optical performance which is 12 times more than the existing ordinary diamonds.
    Type: Application
    Filed: August 29, 2014
    Publication date: March 5, 2015
    Inventors: He Qiantai, Huang Haixin
  • Publication number: 20150052946
    Abstract: An article of jewelry includes a stone having a viewing surface and a back surface and epoxy. The stone preferably is transparent or translucent in that it preferably internally and externally reflects and refracts light. The epoxy preferably is provided on the back surface of the stone, the color of which is preferably viewable, including from the stone's front surface. The epoxy may be colored, transparent, translucent or colorless. The design is such that the epoxy surface and the viewing surface of the stone are intended to be left at least partially exposed and viewable in the final article of jewelry.
    Type: Application
    Filed: August 26, 2013
    Publication date: February 26, 2015
    Inventor: Thomas William Reid, II
  • Publication number: 20150052947
    Abstract: A gemstone cut into a round stone and method of cutting a gemstone are disclosed herein. A crown having a table may be surrounded by eight star sets. The eight star sets may be surrounded by eight bezel facets. The eight bezel facets may be surrounded by eight pairs of upper girdle facet sets. Each upper girdle facet set may have one primary upper girdle facet and two secondary upper girdle facets. Each star set may have one primary star facet and four secondary star facets. A bottom having a culet may be surrounded by 8 pavilions the eight pavilions may be surrounded by 8 lower girdle facet sets. Each lower girdle facet set may have one primary lower girdle facet and two secondary lower girdle facets. Both the crown and bottom may be surrounded by 16 girdle facets or by perfectly circular girdle.
    Type: Application
    Filed: October 26, 2012
    Publication date: February 26, 2015
    Inventor: Zev W. Weitman
  • Publication number: 20150020544
    Abstract: A cushion cut diamond and method for polishing a diamond to form a cushion cut which will display a hearts and arrows pattern characteristic of the true hearts and arrows pattern in a round cut diamond when subjected to light. The cushion cut is formed by polishing a diamond into a symmetrical rounded shaped geometry having four curvilinear long sides and four curvilinear corner sides of equal radius with the four curvilinear corner sides interconnecting the four curvilinear long sides to form the rounded shape; forming 4 main crown facets of substantially equal geometry and dimension symmetrically positioned on the four long sides of the diamond with the 4 main crown facets on the four corner sides being equal in geometry and dimension and symmetrically positioned on the four corner sides and further comprising a table facet, 8 crown star facets on the main crown sides adjacent the table facet; 16 crown halve facets.
    Type: Application
    Filed: August 27, 2013
    Publication date: January 22, 2015
    Applicant: WORLDWIDE DIAMOND TRADEMARKS LTD.
    Inventor: RONI RYDLEWICZ
  • Publication number: 20150007610
    Abstract: The invention relates to an ornamental device (1) comprising at least one cut or polished stone (2) with at least one rear portion (23). This ornamental device (1) is characterised by 5 the fact that it also has: means (3) to at least partially protect the rear portion (23) of the stone (2) from becoming soiled. This means of protection (3) takes on the shape of this rear portion (23) of the stone (2) and equips this rear portion (23) of the stone (2) without adhering to it; means (5) to prevent the ingress of a body from between the rear portion (23) of the stone (2) and the means (3) for protecting this rear portion (23) of the stone (2) and/or to prevent the egress of such a body from a defined internal volume (4) between the rear portion (23) of the stone (2) and the means (3) for protecting this rear portion (23) of the stone (2); Means for securing, on the stone (2), means (3) for protecting the rear portion (23) of this stone (2).
    Type: Application
    Filed: February 5, 2013
    Publication date: January 8, 2015
    Inventor: Arnaud Greulich
  • Publication number: 20140366778
    Abstract: Perfumed stones adapted to store perfume so as to release the smell over an extended period, and a method of manufacture of perfumed stones, is disclosed. The stones find particular suitability in perfumed jewelry.
    Type: Application
    Filed: April 7, 2014
    Publication date: December 18, 2014
    Inventors: Renee Susan Van Veen, Jean Pierre Goedermans
  • Publication number: 20140352354
    Abstract: The invention discloses a composite gemstone for use in jewelry, formed of two or more adjacent precious stones, bonded to one another in a permanent manner without use of adhesive. The appearance is that of a single homogenous stone, with high grade optical properties as measured spectroscopically. “Low height” diamonds may be used for forming the composite, when to date such low height diamonds are considered non-profitable for jewelry. A process for the production of such composite gemstones is disclosed.
    Type: Application
    Filed: December 23, 2012
    Publication date: December 4, 2014
    Inventor: Yehoshua MANDELL
  • Publication number: 20140345321
    Abstract: An article of jewelry for wearing on the body may comprise a sintered polycrystalline diamond compact with substantially no metal catalyst. As many of the metal catalysts commonly used in the art are known to cause skin irritation, such a sintered compact with substantially no metal catalyst may be more biocompatible than previously known. A method for forming such a biocompatible sintered polycrystalline diamond compact comprises mixing diamond powder and metal catalyst powder into a mixture and sintering the mixture under elevated temperature and pressure conditions to form a sintered compact. The sintered compact may then be leached in an acid or other solution to substantially remove the metal catalyst from the sintered compact.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Inventors: David R. Hall, Ronald B. Crockett, Neil Cannon
  • Patent number: 8869556
    Abstract: The invention provides a piece or article of jewelry that is made from a metal support including a plate having an upper surface and lower surface with an upstanding peripheral rim on the upper surface that is mounted on the support to be normal to the viewer, and a sealed transparent dome filled with a liquid of a preselected specific gravity and viscosity into which is immersed a plurality of objects of given density. The dome is sealed to the upper surface of the plate and to the upstanding rim. The plurality of objects disperses in the liquid responsive to agitation or disturbance and will slowly settle by gravity to the lowest point of the dome when the agitation or disturbance ceases. The invention also provides a method of making the article of jewelry.
    Type: Grant
    Filed: November 11, 2009
    Date of Patent: October 28, 2014
    Assignee: Stars of Africa Corp.
    Inventors: Lita Natascha Asscher, Mike Edward Asscher
  • Patent number: 8844319
    Abstract: A gemstone cut with a table facet, where the gemstone receives existing light from around the viewer and the facets on the bottom of the diamond effectively reflect the existing light back into the eyes of the beholder in such a manner as to maximize light performance, and to produce a unique and distinct look of light in the form of a flower with eight rounded pedals under the table facet which can be observed in natural ambient light.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: September 30, 2014
    Inventor: Jonathan Weingarten
  • Patent number: 8834177
    Abstract: A computer-implemented method teaches a user to evaluate a gemstone, such as a cut diamond. The method includes providing a computer system connected to an apparatus capable of capturing an image of a gemstone. The computer system is arranged to process a received image of a gemstone to determine one or more optical properties of the gemstone. In one aspect, the method presents on a display of the computer system a series of pre-stored screens comprising a graphical representation how the cut of a gemstone affects its light handling ability, and a user interface screen. The user interface screen allows the user to control the operation of the apparatus to measure the one or more optical properties of a particular gemstone provided to the apparatus, to view an image of the gemstone measured, and to view representations of the measured one or more optical properties.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: September 16, 2014
    Assignee: Sarine Color Technologies Ltd.
    Inventors: Davy Lapa, Christian Marie Joseph Ghislain Corneille Lenaerts
  • Patent number: 8813519
    Abstract: A modified princess cut diamond and method of forming a modified princess cut diamond into a symmetrical shape possessing a hearts and arrows pattern characteristic of the true hearts and arrows pattern in a round cut diamond.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: August 26, 2014
    Assignee: Worldwide Diamonds Trademarks Ltd.
    Inventor: Roni Rydlewicz
  • Patent number: 8769987
    Abstract: The present invention relates to a gemstone comprising a girdle, a crown, and a pavilion. The crown has a table, ten star facets surrounding the table, ten bezel facets aligned between the star facets, and twenty upper girdle facets aligned between the bezel facets. The pavilion is provided with ten pavilion main facets, twenty pavilion hook facets aligned between the pavilion main facets, and ten pavilion star facets aligned between the pavilion hook facets.
    Type: Grant
    Filed: November 29, 2010
    Date of Patent: July 8, 2014
    Assignee: Dimexon Diamonds Ltd.
    Inventor: Paras Paresh Mehta
  • Publication number: 20140116088
    Abstract: A gemstone cut into a round stone and method of cutting a gemstone are disclosed herein. A crown having a table may be surrounded by eight star sets. The eight star sets may be surrounded by eight bezel facets. The eight bezel facets may be surrounded by eight pairs of upper girdle facet sets. Each upper girdle facet set may have one primary upper girdle facet and two secondary upper girdle facets. Each star set may have one primary star facet and four secondary star facets. A bottom having a culet may be surrounded by 8 pavilions the eight pavilions may be surrounded by 8 lower girdle facet sets. Each lower girdle facet set may have one primary lower girdle facet and two secondary lower girdle facets. Both the crown and bottom may be surrounded by 16 girdle facets or by perfectly circular girdle.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 1, 2014
    Inventor: Zev W. Weitman
  • Patent number: 8707733
    Abstract: A gemstone cut with a table facet, where the gemstone receives existing light from around the viewer and the facets on the bottom of the diamond effectively reflect the existing light back into the eyes of the beholder in such a manner as to maximize light performance, and to produce a unique and distinct look of light in the form of a Maltese cross under the table facet which can be observed in natural ambient light.
    Type: Grant
    Filed: June 9, 2010
    Date of Patent: April 29, 2014
    Inventor: Jonathan Weingarten
  • Publication number: 20140075991
    Abstract: The present invention discloses a gemstone comprising a table, a crown and a pavilion. Certain areas of the surfaces of the gemstone are coated with at least one layer of multi-color thin film comprising at least two (2) types of metallic compounds. A layer of DLC protective coating is deposited on top of the multi-color thin film. The said multi-color thin film can be deposited on the table of the gemstone, the table and crown of the gemstone, on certain areas of the pavilion, or on all surfaces of the gemstone. The deposition of the multi-color thin film can be achieved through several low temperature vapor-coating techniques such as sputtering, chemical vapor deposition (CVD) and physical vapor deposition (PVD), ARC Source deposition, PLD, and MED.
    Type: Application
    Filed: September 19, 2012
    Publication date: March 20, 2014
    Inventor: XINXIN HE
  • Publication number: 20140047867
    Abstract: The specification relates to a gemstone setting. The gemstone setting includes a gemstone, a mounting surface and a braze joint. The braze joint is formed from a reactive metallic alloy with the reactive metallic alloy adhering the gemstone to the mounting surface. The braze joint is substantially concealed from a direct line of sight from a top portion of the gemstone by preventing excessive alloy from getting outside a desired braze area.
    Type: Application
    Filed: August 20, 2013
    Publication date: February 20, 2014
    Inventors: Wayne L. Sunne, Jim Hicks, Rick Pierini, Ed Liguori, Quent Duden
  • Publication number: 20140033765
    Abstract: Method for determining a cut for a gemstone, comprising selecting a generic shape for the cut; selecting a plurality of cut designs of a group of cut designs having the selected generic shape; simulating a number of optical metrics for the plurality of cut designs using simulation models having modeling coefficients; selecting one or more cut designs of the plurality of cut designs based on the simulated optical metrics; varying the geometry parameters for each selected cut design within a range, simulating a number of optical metrics for said range of geometry parameters, and determining an optimized cut design having optimized geometry parameters based on the simulated number of optical metrics for said range; cutting and polishing of the gemstone using the optimized cut design having the optimized geometry parameters; analyzing the visual appearance of the polished gemstone; changing or adapting the simulation models and/or the modeling coefficients thereof and/or the range for varying the geometry paramet
    Type: Application
    Filed: March 20, 2012
    Publication date: February 6, 2014
    Applicant: OCTONUS DIA-TECH PRIVATE LTD.
    Inventors: Garry Holloway, Janak A. Mistry, Roman Sergeevich Serov, Sergey Borisovich Sivovolenko, Yuri Borisovich Shelementiev, Alexander Viktorovich Medvedev
  • Publication number: 20140026616
    Abstract: A decagonal shaped diamond, adapted to display a hearts and arrows pattern when exposed to light comparable to the hearts and arrows pattern in a round diamond. The decagonal shaped diamond should be cut to form ten main crown facets of substantially equal size symmetrically arranged relative to one another surrounding a table facet twenty star facets with two star facets polished on every main crown facet, ten main pavilion facets, an equal number of crown half facets as pavilion half facets, ten subsidiary pavilion half facets, twenty subsidiary pavilion facets and ten main girdle facets with the girdle facets polished at a given angle relative to one another for forming the decagonal shape of the diamond.
    Type: Application
    Filed: September 30, 2013
    Publication date: January 30, 2014
    Applicant: WORLDWIDE DIAMOND TRADEMARKS LTD.
    Inventor: RONI RYDLEWICZ
  • Publication number: 20140013800
    Abstract: The present invention is directed to an ornament which gives the aesthetic appearance of a gemstone in a setting, but includes an illusion plate in a well so as to accentuate any material resting on the plate.
    Type: Application
    Filed: October 16, 2012
    Publication date: January 16, 2014
    Applicant: RICHLINE GROUP, INC.
    Inventors: Surasit SRIORATHAIKUL, Michael MILGROM
  • Publication number: 20140013801
    Abstract: The instant application discloses, among other things, a specific set of cutting proportions tailored for the optical characteristics of Silicon Carbide (“SiC”) which may produce a “Hearts & Arrows” reflection pattern.
    Type: Application
    Filed: January 2, 2013
    Publication date: January 16, 2014
    Applicant: Betterthandiamond, Inc.
    Inventor: Anthonv Ritchie
  • Patent number: 8616192
    Abstract: The invention relates to a gemstone (10) comprises a girdle (13), a crown (11) and a pavilion (12). The crown (11) comprises a table (14), eight star facets (15) surrounding the table (14), eight first half facets (16) aligned between the star facets (15), eight second half facets (17) aligned adjacent to the first half facets (16) and sixteen upper girdle facets (20) aligned between the second half facets (17). The pavilion (12) comprises sixteen pavilion main facets (23) and sixteen lower girdle facets (25) aligned between the pavilion main facets (23). The invention also relates to a method of cutting the gemstone.
    Type: Grant
    Filed: December 6, 2010
    Date of Patent: December 31, 2013
    Inventor: Alain Vets
  • Publication number: 20130327090
    Abstract: The instant application discloses, among other things, a specific set of cutting proportions tailored for the optical characteristics of Silicon Carbide (“SiC”) which may produce a “Hearts & Arrows” reflection pattern.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 12, 2013
    Inventor: Anthony Ritchie