发明名称 Diamond cut
摘要 A brilliant gemstone cut, having a crown, a girdle and a pavilion. The crown has a flat table shaped as an equilateral n-sided polygon. The girdle is also multi sided polygon. The corner, lower girdle, bezel and star facets are at significantly angles of inclination, with respect to the table to provide significantly improved brilliance. The upper corner facets are spaced from the girdle. The space between the corner facet vertices and the girdle is left open to be covered by a prong of a jewelry setting.
申请公布号 US7225642(B2) 申请公布日期 2007.06.05
申请号 US20030658316 申请日期 2003.09.09
申请人 SIMKA DIAMONDS 发明人 KATZ PHILIP;FRIEDMAN ISAAC
分类号 A44C17/00 主分类号 A44C17/00
代理机构 代理人
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