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.
YOUR CHOICE
3mm
4mm
5mm
6mm
8mm
10mm
12mm
16mm
Materials: black onyx calibrated cabochon.
