Patent ID: 8844319
Filing Date: 2014-09-30
Classification: A44C

Abstract:
1. A cut diamond providing an optical pattern of an eight petal flower appearing in the diamond when viewed above a table facet, comprising: a girdle portion having a girdle plane, said girdle portion having a substantially round shape; a crown portion on one side of said girdle portion, said crown portion including: a pavilion portion arranged on another side of said girdle portion diametrically opposite said crown portion, said pavilion portion tapering inward towards a point as it extends away from said girdle plane, said pavilion portion including: wherein, when said cut diamond is viewed from above, a majority of said cut diamond reflects incident light impinging on said cut diamond at an angle between 45 and 75 degrees with respect to said girdle plane, and wherein for each of said sixteen crown half facets, said incident light impinging on said cut diamond at said angle between 45 and 75 degrees with respect to said girdle plane is reflected through about 81% to about 99% of a surface area of said respective crown half facet, said respective surface area being determined when said cut diamond is viewed from above.