Huynh - Diagonal Check
From The Gemology Project
Diagonal Check - Michiko Huynh
I cut the crown first. But either the crown or the pavilion can be cut first. Be careful not to cut the corner too wide. Cut the girdle as symmetric as you can.
Click on this link to download the gemcad file: File:Diagonal Check.gem
Click on this link to download the pdf file: File:Image DIAGON~1.pdf
NOTE:The pavilion of this design is not suitable for a closed-C tourmaline. It will blacken the whole stone.
For a closed-C tourmaline use this variation. Click to download the pdf file:File:DIAGON~2.pdf