Unique Top Grade Quality 100% Natural Black Opal Stones Triangle Shape Cabochon Loose Gemstone For Making Jewelry - Opal African

Product Code (SKU) L-1672 Stone Name Black Ethiopian Opal Weight 4.15 Ct Stone Size 12 x 12 x 5 mm Shape Triangle Cut Cabochon Color Black Transparency / Effect Fire Play Origin Ethiopia (Welo region) Hardness (Mohs) 5.5 to 6.5 Type Natural Loose Gemstone