Black Opal

4.12 ct Resplendent Pear Cabochon Cut (18 x 8 mm) Ethiopia Play of Colors Black Opal Natural Gemstone

3.12 ct Superior Pear Cabochon Cut (14 x 9 mm) Ethiopia Play of Colors Black Opal Natural Gemstone

4.10 ct Pretty Pear Cabochon Cut (15 x 9 mm) Ethiopia Play of Colors Black Opal Natural Gemstone

3.98 ct Tremendous Cushion Cabochon (17 x 8 mm) Ethiopian 360 Degree Flashing Black Opal Natural Gemstone

3.97 ct AIG Certified Good-looking Pear Cabochon Cut (18 x 9 mm) Unheated / Untreated Natural Black Opal Gemstone

2.70 ct AIG Certified Astonishing Pear Cabochon Cut (16 x 8 mm) Unheated / Untreated Natural Black Opal Gemstone

3.22 ct AIG Certified Incredible Pear Cabochon Cut (14 x 9 mm) Unheated / Untreated Natural Black Opal Gemstone

4.23 ct Tremendous Oval Cabochon Cut (14 x 10 mm) Ethiopia Play of Colors Black Opal Natural Gemstone

6.77 ct Best Oval Cabochon (17 x 12 mm) Ethiopian 360 Degree Flashing Black Opal Natural Gemstone

5.77 ct Pretty Oval Cabochon (18 x 12 mm) Ethiopian 360 Degree Flashing Black Opal Natural Gemstone

3.95 ct Fair Oval Cabochon (15 x 11 mm) Ethiopian 360 Degree Flashing Black Opal Natural Gemstone

5.54 ct Superior Oval Cabochon (15 x 10 mm) Ethiopian 360 Degree Flashing Black Opal Natural Gemstone