Columbia Gem House – Untreated Winza Sapphire & Ruby

Part of an exclusive collaboration with Australian-based brand Cheal Opal, this new collection of calibrated Lightning Ridge opals features rounds, ovals, and pear shapes ranging in size from 2 mm to 8 mm. Available varieties include black, semi-black, white, and crystal opals, each with play of color. The collection also features Ghost Opal, a crystal-body opal with subtle flashes of iridescent blue and purple. All stones are solid opals—no doublets or triplets.