This 15.91 Carats TCW 100% Natural Beautiful Black Fossil Coral Rectangular Cabochon Good Quality Gem By DVG of Size 21.0 x 16.0 x 4.5 MM Approx., 1 Pc Gem has Opaque Clarity, Beautiful Black Color, no treatment come from United states mines. At DVG, we deal only in 100% Natural gems from around the world and manufacture.All of the products are ethically sourced. Additional Details ------------------------------ Product description: This 15.91 Carats TCW 100% Natural Beautiful Black Fossil Coral Rectangular Cabochon Good Quality Gem By DVG of Size 21.0 x 16.0 x 4.5 MM Approx., 1 Pc Gem has Opaque Clarity, Beautiful Black Color, no treatment come from United states mines. At DVG, we deal only in 100% Natural gems from around the world and manufacture.All of the products are ethically sourced.