Triangular shaped diamond which displays hearts and arrows...

Details Triangular shaped diamond which displays hearts and arrows... Triangular shaped diamond which displays hearts and arrows...

2011-07-05

2011-07-05

Lavinder, Jack W. (Department: 3677)

Jewelry

Gem

CD11S090000

Reexamination Certificate

active

07971452

ABSTRACT:
A triangular shaped diamond adapted to display a hearts and arrows pattern when exposed to light comparable to the hearts and arrows pattern in a round diamond, comprising: six main crown facets, twelve crown half facets, a table facet, six main pavilion facets and a plurality of girdle facets separating the crown facets from the pavilion facets with each main crown facet having a symmetrically positioned opposite crown facet of substantially equal size surrounding the table facet and having at least one edge in parallel alignment with a corresponding edge in the main crown facet opposite thereto.

REFERENCES:
patent: D250100 (1978-10-01), Finker et al.
patent: D521409 (2006-05-01), De Castro et al.
patent: D544391 (2007-06-01), Winkler
patent: D567139 (2008-04-01), Rydlewicz
patent: D567140 (2008-04-01), Rydlewicz
patent: 2003/0221452 (2003-12-01), Morbidoni

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