Blue-green Nigerian tourmalines, “Square Ziggie - Reflector” gem design. Design and photo by Jeff Graham. You can find cutting instructions for this design in Jeff Graham’s book, “Money Cuts,” Addition #4.
Blue Tourmaline Faceted from Nigeria
Blue-green Nigerian tourmalines, "Square Ziggie - Reflector" gem design. Design and photo by Jeff Graham. You can find cutting instructions for this design in Jeff Graham's book, "Money Cuts," Addition #4.
Article: Basic Rules for the Gem Cutting Business
Credit: <em>“Money Cuts,” Addition #4</em>
| Gemstone | Tourmaline |
| Natural or man made | Natural |
| Origin | Nigeria |
| Gem State | Faceted |
| Color | Blue |
| Transparency | Transparent |