Opal – Natural, Cabochon, White, 12.28 ct

I cut this stone in the shape of a guitar pick. It has some interesting mossy looking stuff in it as shown in the photo, and the play of color is very interesting. Straight on, it looks a lot like what you see in the image, then if you rotate it sideways just righ, the whole thing lights up with little neon green sparkles that replace the blue-purple broadflash. The colors are a bit stronger in person also. Color: Gray Base (semi-black) with purple, teal, blue and bright green fire, Cut: Fancy Cabochon, Weight: 12.28, Dimensions: 18.73 x 21.39 mm. (Information supplied by photo contributor.) © Daniel Stair, CustomGemstones.com

Credit: Daniel Stair, CustomGemstones.com 2014