Abstract: Disclosed are systems and methods, including a method that includes depositing a curable adhesive onto a first surface of a substrate in a pre-determined pattern, placing topping material onto the substrate with the deposited adhesive, and applying UV energy to the substrate including the deposited adhesive and the placed topping material to cause curing of the deposited adhesive.

Abstract: Disclosed are systems and methods, including a method that includes depositing a curable adhesive onto a first surface of a substrate in a pre-determined pattern, placing topping material onto the substrate with the deposited adhesive, and applying UV energy to the substrate including the deposited adhesive and the placed topping material to cause curing of the deposited adhesive.

Abstract: A rounded rectangular gemstone which comprises a crown provided with a planar table, a pavilion whose facets converge at a cutlet being disposed below said crown, and a girdle extending from said crown to said pavilion, said girdle being substantially perpendicular to said table and assuming a rectangular shape when viewed thereabove and therebelow, wherein said crown and said pavilion have substantially circular cross-sections along a plane parallel to said table and the facets of said pavilion are arranged in rotational symmetry about said cutlet and in mirror symmetry about lines of symmetry passing through said cutlet and the midpoint of each side of said girdle and through said cutlet and each corner of said girdle.