Products tagged with 'untreated gemstone'
6.26cts., 17.04x11.27x5.4mm | Blues with hints of greens Opal
8.27cts., 21.5 x 13.86 x 4.99mm | Pear Shaped Green Blue Opal
13.17cts.,21.56x21.02x5.6mm | Moody Blue Green Trillion Shape
12.58 cts., 23.5x18.34x4.6mm | Blue, Green, Violet Black Opal
(5.79cts.)16.6 x 12.78 x 4.12mm | Harlequin Black Opal Doublet
One-of-a-kind Crystal Black Opal