Opal

10.57 ct Grand looking Fancy Shape (21 x 12 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone

6.63 ct Grand looking Fancy Shape (20 x 10 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone

2.06 ct Spectacular Oval (11 x 8 mm) Un-Heated Ethiopia Rainbow Opal Loose Gemstone

2.45 ct Fair Oval Cabochon Cut (11 x 9 mm) Ethiopia Play of Colors Rainbow Opal Natural Gemstone

9.19 ct Sparkling Fancy Shape (22 x 14 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone

7.14 ct Unbelievable Fancy Cabochon Shape (21 x 12 mm) Play of Colors Australian Koroit Boulder Opal Natural Loose Gemstone

1.76 ct Super-Excellent Oval Cabochon Cut (11 x 8 mm) Ethiopia Play of Colors Rainbow Opal Natural Gemstone

5.80 ct World class Oval Cabochon Cut (15 x 11 mm) Ethiopia Play of Colors Rainbow Opal Natural Gemstone

3.35 ct Eye-opening Oval Cabochon (14 x 9 mm) Ethiopian 360 Degree Flashing Rainbow Opal Natural Gemstone

3.08 ct Lovely Trillion (12 x 12 mm) Un-Heated Ethiopia Rainbow Opal Loose Gemstone

11.87 ct Eye-catching Oval Cabochon (19 x 15 mm) Un-Heated Mexico Matrix Fire Opal Loose Gemstone

40.52 ct Valuable Fancy Shape (31 x 19 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone