Fabri - Trinidad SRB
This design is Long & Steeles SRB modified for 72 index, and with a step on the pavilion added. The modification was requested by Nick Fabri (NickAtNight - Gemology Online Forum) who also named the modified design. The design has been optimised for RI 1.76 and works well in medium saturated sapphire and most likely garnet.
Click on this link to download the GemCad file :File:RND RI1760 SRB Var Trinidad 3.gem
Click on the link to access the JPG version of this file :File:RND RI1760 SRB Var Trinidad 3 PDF.pdf