OCTAGONAL DIAMOND

WIPO Patent Application WO/2019/020128

A1

The present application relates to an octagonal diamond, comprising a crown, a girdle and a pavilion, the crown comprising one regular octagonal table, each edge of the table being provided with a first crown main facet and a second crown main facet arranged at intervals along a girdle direction, each first crown main facet being provided with a first crown auxiliary facet along the girdle direction, each second crown main facet being provided with a second crown auxiliary facet along the girdle direction, a third crown main facet being arranged between each adjacent first crown main facet/first crown auxiliary facet and second crown main facet/second crown auxiliary facet, a first crown upper girdle facet being arranged between a girdle line and each third crown main facet and adjacent first crown auxiliary facet, a second crown upper girdle facet being arranged between the girdle line and each third crown main facet and adjacent second crown auxiliary facet. The present application provides an improved princess square diamond with an all-new facet structure, wherein the crown of the diamond has eight more facets than current improved princess square diamonds, further increasing the refraction and reflection of light rays. The diamond of the present application is brighter and has stronger fire.

DONG HUIJUAN (CN)
JU LUXUAN (CN)

PCT/CN2018/103980

January 31, 2019

September 04, 2018

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DONG HUIJUAN (CN)

A44C17/00

CN107373930A	2017-11-24
CN207306258U	2018-05-04
CN1593285A	2005-03-16
CN106723729A	2017-05-31

QINGDAO LAWSCI INTELLECTUAL PROPERTY CO., LTD. (CN)

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