28.60 carats Zachary treatment Sonoran Blue Turquoise Cabochon. This cabochon is backed. The cabochon measures : 30.64 mm long X 15.85 mm wide X 7.92 mm thick.
28.60 carats Zachary treatment Sonoran Blue Turquoise Cabochon. This cabochon is backed. The cabochon measures : 30.64 mm long X 15.85 mm wide X 7.92 mm thick.