Oh, patents! My girl™ diamond cut

Copyright © Françoise Herrmann

Yair Shimansky's 8-sided square-cut diamond with a diamond-shaped table, and a faceted pavilion which also reflects light, is trademarked the My girl™ diamond cut.

The Shimansky My girl™ diamond cut was granted US Design patent USD490741, titled Gemstone. As a reminder :

“a utility patent” protects the way an article is used and works (35 U.S.C. 101), while a “design patent” protects the way an article looks (35 U.S.C. 171) [MPEP Chapt. 1502.01; [R-07.2015]].

The included patent figure 1 shows a top view of the diamond-shaped table. The patent Figure 2 shows the faceted edges of the pavilion from the bottom of the gemstone. Included below, the image of a marketed My girl™ cut diamond. 

References
Shimansky

http://www.shimansky.com/

MPEP – Chapt. 1502-01 – Distinction between design and utility patent

https://www.uspto.gov/web/offices/pac/mpep/s1502.html