EP 3315043 A1 20180502 - GEMSTONE HAVING HEARTS AND ARROWS PATTERN AND METHOD OF CUTTING THE SAME
Title (en)
GEMSTONE HAVING HEARTS AND ARROWS PATTERN AND METHOD OF CUTTING THE SAME
Title (de)
EDELSTEIN MIT HERZ- UND PFEILMUSTER UND VERFAHREN ZUM SCHNEIDEN DAVON
Title (fr)
PIERRE PRÉCIEUSE AYANT UN MOTIF DE COEURS ET FLÈCHES ET PROCÉDÉ DE COUPE ASSOCIÉ
Publication
Application
Priority
SG 10201609133U A 20161101
Abstract (en)
The present invention relates to a round gemstone (10) having a hearts and arrows pattern of ten hearts and arrows. The gemstone comprises a girdle (13), a crown (11) and a pavilion (12). The crown (11) comprises a table (14), ten star facets (15) surrounding the table, ten crown main facets (16) with each aligned between two adjacent star facets, twenty crown half facets (20) forming ten pairs of crown half facets, with each pair of the crown half facets aligned between two adjacent crown main facets (16), and ten crown middle half facets (21), with each crown middle half facet (21) aligned between two crown half facets (20). The pavilion (12) is provided with ten pavilion main facets (24), and twenty lower girdle facets (25) forming ten pairs of lower girdle facets, with each pair of the lower girdle facets aligned between two adjacent pavilion main facets (24). The invention also relates to a method of cutting the round gemstone.
IPC 8 full level
A44C 17/00 (2006.01)
CPC (source: CN EP US)
A44C 17/001 (2013.01 - EP US); A44C 17/003 (2013.01 - CN); B28D 5/00 (2013.01 - CN)
Citation (search report)
- [XI] US 2005011226 A1 20050120 - SO DAVID [US]
- [X] US 2015296934 A1 20151022 - ZHANG KUNZHI [CN], et al
- [A] US 2006137674 A1 20060629 - AOYAGI TAKESHI [JP]
- [A] US D453120 S 20020129 - CHENG NAI YAN [HK]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3315043 A1 20180502; CN 108013550 A 20180511; SG 10201609133U A 20180628; US 2018146751 A1 20180531
DOCDB simple family (application)
EP 17199130 A 20171030; CN 201711058058 A 20171101; SG 10201609133U A 20161101; US 201715799928 A 20171031