Black Onyx Round Calibrated Cabochon Stones - 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm, and 16mm
This listing is for Black Onyx Round Calibrated Cabochon Stones. Calibrated means that these cabochons are precisely and consistently cut so you can be confident that they will fit into any of our round cabochon settings perfectly, every time! We love this naturally hard stone that takes a high polish and has uniform color. These cabochons are available in 8 sizes.
Materials: black onyx calibrated cabochon.