Black

Doublet Opal Multicolour 15x8.5x5.5 Cabochon Freeform 4.6 Carat

Black Opal Blue 30x17x4.5 Cabochon Freeform 14.4 Carat

Semi Black Opal Green Multi 34x14x5.7 Cabochon Freeform 15.7 Carat

Semi Black Opal Green Multi 17x10x3.5 Cabochon Freeform 3.5 Carat

Black Opal Blue Green 18x10x3.5 Cabochon Freeform 4.05 Carat

Semi Black Opal Red Green 28x21x7.2 Cabochon Pear 23.80 Carat

Black Opal Multicolour 62x30x17 Cabochon Freeform 68 Carat 'Cosmic Night'

Semi Black Opal Multicolour 18x8.5x4.1 Cabochon Triangle 3.85 Carat

Semi Black Opal Multicolour 9x6x2.2 Cabochon Pear 0.9 Carat

Semi Black Opal Green Multicolour 20x19x5 Cabochon Triangle 10.95 Carat

Semi Black Opal Red Multicolour 25x13.5x4.7 Cabochon Marquise 10.65 Carat

Semi Black Opal Red Multicolour Harlequin 25x14x5.1 Cabochon Freeform 10.85 Carat

Semi Black Crystal Opal Blue Green 34x14x4 Cabochon Marquise 12.8 Carat

Black Opal Blue 14x11x4.3 Cabochon Oval 4.4 Carat

Black Crystal Opal Blue 16x13x3.7 Cabochon Oval 5.00 Carat

Clear Tourmaline Quartz 19x17x8 Cabochon Rectangle 25.72 Carat

Black Opal Blue 24x16x3 Cabochon Oval 7.75 Carat

Semi Black Opal Red Multicolour 22x20x4 Cabochon Freeform 9.9 Carat

Semi Black Opal Multicolour 21x17x5.5 Cabochon Oval 11.90 Carat

Doublet Opal Blue Green 18x15x5 Cabochon Oval 9.25 Carat

Doublet Opal Blue Green 28x20x4 Cabochon Freeform 15.50 Carat

Doublet Opal Blue Green 18x15x4 Cabochon Freeform 7.65 Carat

Black Opal Blue Green 28x18x5.8 Cabochon Oval 17.50 Carat