发明名称 |
OVAL CUT DIAMOND |
摘要 |
<p>An oval cut diamond having a girdle with elliptical or nearly elliptical outline, a crown which is above the girdle and has an octagonal table facet in the top section, and a pavilion which is below the girdle. The girdle has an aspect ratio (b/a) of 0.6 or more where a is the radius in the direction of the long axis and b is the radius in the direction of the short axis. A pair of pavilion main facets arranged opposite to each other with respect to the central axis have a crown main facet pair or a star facet pair respectively facing them across the girdle. Since these two pavilion main facets, two crown main facets or star facets, and the table facet have a common vertical plane in their facets, brightness of reflected light emerging above the table facet and the crown facets is enhanced.</p> |
申请公布号 |
WO2005096866(A1) |
申请公布日期 |
2005.10.20 |
申请号 |
WO2005JP05490 |
申请日期 |
2005.03.25 |
申请人 |
HOHOEMI BRAINS, INC.;MATSUMURA, TAMOTSU;KAWABUCHI, YOSHINORI;ITOH, AKIRA |
发明人 |
MATSUMURA, TAMOTSU;KAWABUCHI, YOSHINORI;ITOH, AKIRA |
分类号 |
A44C17/00;(IPC1-7):A44C17/00 |
主分类号 |
A44C17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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