Abstract

The present invention provides a gemstone comprising a girdle dividing the gemstone into a pavilion and a crown having a table surface; a tier of facets cut into the pavilion at a position immediately below the girdle; and a continuous groove. The groove facilitates mounting to a collet having a mounting rim. The continuous groove is located in the tier of the facets cut into the pavilion. The placement of the tier of facets and continuous groove does not obstruct light return.

IPC Classes  ?

• A44C 17/00 - Gems or the like
• A44C 1/00 - Brooches or clips in their decorative or ornamental aspect
• A44C 5/00 - BraceletsWrist-watch strapsFastenings for bracelets or wrist-watch straps
• A44C 7/00 - Ear-ringsDevices for piercing the ear-lobes
• A44C 9/00 - Finger-rings
• A44C 15/00 - Other forms of jewellery
• A44C 17/02 - Settings for holding gems
• A44C 25/00 - Fancy ware for personal wear, not provided for in groups or , e.g. crosses, crucifixes, charms
• B23K 26/364 - Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
• B23K 26/402 - Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
• B23K 103/00 - Materials to be soldered, welded or cut
• B28D 5/04 - Fine working of gems, jewels, crystals, e.g. of semiconductor materialApparatus therefor by tools other than of rotary type, e.g. reciprocating tools

Abstract

The present invention provides a gemstone comprising a girdle dividing the gemstone into a pavilion and a crown having a table surface; a tier of facets cut into the pavilion at a position immediately below the girdle; and a continuous groove. The groove facilitates mounting to a collet having a mounting rim. The continuous groove is located in the tier of the facets cut into the pavilion. The placement of the tier of facets and continuous groove does not obstruct light return.

IPC Classes  ?

• A44C 17/00 - Gems or the like
• B23K 26/364 - Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
• A44C 1/00 - Brooches or clips in their decorative or ornamental aspect
• A44C 5/00 - BraceletsWrist-watch strapsFastenings for bracelets or wrist-watch straps
• A44C 7/00 - Ear-ringsDevices for piercing the ear-lobes
• A44C 9/00 - Finger-rings
• A44C 15/00 - Other forms of jewellery
• A44C 17/02 - Settings for holding gems
• A44C 25/00 - Fancy ware for personal wear, not provided for in groups or , e.g. crosses, crucifixes, charms
• B23K 26/402 - Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
• B28D 5/04 - Fine working of gems, jewels, crystals, e.g. of semiconductor materialApparatus therefor by tools other than of rotary type, e.g. reciprocating tools

Abstract

The present invention provides a gemstone comprising a girdle dividing the gemstone into a pavilion and a crown having a table surface; a tier of facets cut into the pavilion at a position immediately below the girdle; and a continuous groove. The groove facilitates mounting to a collet having a mounting rim. The continuous groove is located in the tier of the facets cut into the pavilion. The placement of the tier of facets and continuous groove does not obstruct light return.

IPC Classes  ?

• A44C 17/00 - Gems or the like
• A44C 17/02 - Settings for holding gems