Take a look at this hand cut American Turquoise gemstone by John Hartman. This genuine 18 Carat Triangular Bisbee Turquoise Cabochon is a deep blue to green color and features classic chocolate brown to red matrix as is common in Bisbee Turquoise. John cut the cabochon as a free form rounded triangle. This stone would make a great bracelet, pendant or belt buckle as it is nicely sized and hard. This stone weighs 18 cts and measures 22 mm X 22 mm. The 18 Carat Triangular Bisbee Turquoise Cabochon is priced at $8.00 dollars per carat. The stone you see is the stone you get.