Patents Assigned to Ambar Diamonds, Inc.
  • Invisible setting for round diamonds
    Patent number: 5115649
    Abstract: A method and apparatus for invisibly setting round diamonds is disclosed. The diamonds are provided with grooves cut in the pavilion below the girdle of the diamond, and a round barrel is provided which has ridges projecting inwardly from the inner wall of the barrel. The diamond is rotated into the barrel to interlock the ridges within the grooves formed in the diamond to hold the barrel and diamond securely together. The barrel is formed of deformable metal which itself is hammered thereby further preventing relative rotation between the diamond and barrel and ensuring the diamond is securely set within the barrel.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: May 26, 1992
    Assignee: Ambar Diamonds, Inc.
    Inventor: Betzalel Amber
  • Finger ring
    Patent number: D363252
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: October 17, 1995
    Assignee: Ambar Diamonds, Inc.
    Inventors: Bezalel Ambar, Israel Itzkowitz
  • Finger ring
    Patent number: D372204
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: July 30, 1996
    Assignee: Ambar Diamonds, Inc.
    Inventor: Israel Itzkowitz
  • Ring
    Patent number: D373550
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: September 10, 1996
    Assignee: Ambar Diamonds Inc.
    Inventor: Israel Itzkowitz
  • Finger ring
    Patent number: D373969
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: September 24, 1996
    Assignee: Ambar Diamonds Inc.
    Inventor: Betzalel Ambar