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1. 发明公开

EP4371443A1 CUT FOR GEMSTONE 审中-公开
公开(公告)号：EP4371443A1
公开(公告)日：2024-05-22
申请号：EP22208424.6
申请日：2022-11-18
申请人： D. Swarovski KG
发明人： LOINGER, Christian
IPC分类号： A44C17/00
CPC分类号： A44C17/001
摘要： A method of manufacturing a gemstone (2) comprises providing a ball of a gemstone material having a radius R; cutting the ball to provide the gemstone (2) comprising a first side (4), a second side (22), and a girdle (14) between the first side (4) and the second side (22). The girdle (14) comprises two curved sections (16a, 16b) on opposite sides, each curved section (16a, 16b) having a radius of curvature R equal to the radius of the ball, and two straight sections (18a, 18b) on opposite sides and spacing apart the two curved sections (16a, 16b), wherein the straight (18a, 18b) and curved (16a, 16b) sections of the girdle (14) meet at edges (20) extending between the first (4) and second (22) sides of the gemstone (2). Also provided is a gemstone (2) manufactured by the method, and a gemstone (2) having a girdle (14) comprising curved (16a, 16b) and straight (18a, 18b) sections. Articles including a gemstone (2) according to the disclosure are also provided.

5. 发明公开

EP3925750A1 METHOD FOR CORING AND SLICING A CVD DIAMOND PRODUCT 有权
公开(公告)号：EP3925750A1
公开(公告)日：2021-12-22
申请号：EP20179912.9
申请日：2020-06-15
申请人： Synova S.A.
发明人： Richerzhagen, Bernold , Diboine, Jérémie , Genton, Jérôme , Zryd, Amédée
IPC分类号： B28D5/00 , A44C17/00 , B23K26/146 , B23K26/38 , B28D5/04 , B23K26/14
摘要： The present disclosure relates to the field of Chemical Vapor Deposition (CVD) diamonds and their processing after fabrication. In particular, the present disclosures provides a method for coring and slicing a CVD diamond product, wherein the CVD diamond product comprises a CVD diamond and graphitized material covering several side-faces of the diamond. The method is carried out by an apparatus that provides a laser beam coupled into a fluid jet. The method comprises, for the coring, cutting the product with the laser beam to remove the graphitized material from the side-faces of the diamond. Further, the method comprises, for the slicing, cutting off one or more slices from the diamond with the laser beam.

8. 发明公开

EP3796804A1 SCHMUCKSTEINANORDNUNG UND VERFAHREN ZUM HERSTELLEN EINER SCHMUCKSTEINANORDNUNG 审中-公开
公开(公告)号：EP3796804A1
公开(公告)日：2021-03-31
申请号：EP19702258.5
申请日：2019-01-29
申请人： Realization Desal AG
发明人： BONKE, Michael
IPC分类号： A44C17/00

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