Invisible setting for round diamond stone

Details Invisible setting for round diamond stone Invisible setting for round diamond stone

1994-05-12

1995-08-01

Milano, Michael J.

Jewelry

Gem setting

63 32, A44C 1702, A44C 1700

Patent

active

054371678

ABSTRACT:
A method and apparatus for invisibly setting round precious stones, particularly diamonds, is disclosed. The stones are provided with grooves cut in a belt portion, which is a faceted portion located between the girdle and the pavilion. The setting is a cylindrical barrel which is provided with wedge-shaped tongues projecting inwardly from the wall of the barrel. The outside of the barrel is hammered such that under the hammering force the elasticity of the metal permits the advance of the tongues into the grooves. The barrel forms a secure setting for the stone. Each of the wedges which are opposite form an obtuse downward angle which prevents the loosening of the stones, in the upward direction, such that the stone does not become free from the setting.

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patent: 4800738 (1989-01-01), Bunz
patent: 5115649 (1992-05-01), Amber
patent: 5123265 (1992-06-01), Ramot
patent: 5186024 (1993-02-01), Waters, Jr.

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