Jewelry – Gem
Reexamination Certificate
2011-08-09
2011-08-09
Lavinder, Jack W. (Department: 3677)
Jewelry
Gem
CD11S090000
Reexamination Certificate
active
07992410
ABSTRACT:
A modified princess cut diamond and method of forming a modified princess cut diamond into a symmetrical shape possessing a hearts and arrows pattern characteristic of the true hearts and arrows pattern in a round cut diamond. The modified princess cut diamond includes: a tablet facet, 4 main crown facets, 8 crown halves, 8 crown star facets, 4 subsidiary crown facets, 8 subsidiary crown halves, 8 main pavilion facets, 4, subsidiary pavilion facets, 16 pavilion halves, a girdle and 4 subsidiary cut corner girdle facets with each main crown facet having a pair of crown star facets symmetrically disposed on one side thereof adjacent to the tablet facet and a pair of crown halves symmetrically disposed on the opposite side thereof with each pair of crown star facets having the side thereof adjoining the table facet meeting at a point equal to essentially half the longer distance of the main crown facet measured horizontally and with all crown star facets and crown halves adjacent each main crown having identical polished angles with a maximum tolerance of 0.3°.
REFERENCES:
patent: D439542 (2001-03-01), Turner et al.
patent: 2003/0221452 (2003-12-01), Morbidoni
Baker & Hostetler LLP
Lavinder Jack W.
Worldwide Diamond Trademarks Ltd.
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