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  1. New 5.49 ct Very good Oval Cabochon Cut (15 x 12 mm) Ethiopia Play of Colors Rainbow Opal Natural Gemstone
    5.49 ct Very good Oval Cabochon Cut (15 x 12 mm) Ethiopia Play of Colors Rainbow Opal Natural Gemstone
  2. New 7.11 ct Five-star Oval Cabochon (14 x 11 mm) Un-Heated Mexico Matrix Fire Opal Loose Gemstone
    7.11 ct Five-star Oval Cabochon (14 x 11 mm) Un-Heated Mexico Matrix Fire Opal Loose Gemstone
  3. New 5.41 ct Astonishing Fancy Cabochon Shape (18 x 10 mm) Play of Colors Australian Koroit Boulder Opal Natural Loose Gemstone
    5.41 ct Astonishing Fancy Cabochon Shape (18 x 10 mm) Play of Colors Australian Koroit Boulder Opal Natural Loose Gemstone
  4. New 9.57 ct First-class Fancy Cabochon Shape (16 x 13 mm) Play of Colors Australian Koroit Boulder Opal Natural Loose Gemstone
    9.57 ct First-class Fancy Cabochon Shape (16 x 13 mm) Play of Colors Australian Koroit Boulder Opal Natural Loose Gemstone
  5. New 6.50 ct  Excellent Oval Cabochon Shape (20 x 13 mm) Play of Colors Black Opal Natural Gemstone
    6.50 ct Excellent Oval Cabochon Shape (20 x 13 mm) Play of Colors Black Opal Natural Gemstone
  6. New 8.94 ct  Magnificent Oval Cabochon Shape (16 x 13 mm) Play of Colors Black Opal Natural Gemstone
    8.94 ct Magnificent Oval Cabochon Shape (16 x 13 mm) Play of Colors Black Opal Natural Gemstone
  7. New 9.69 ct Awe-inspiring Fancy Cabochon (16 x 15 mm) Un-Heated Mexico Matrix Fire Opal Loose Gemstone
    9.69 ct Awe-inspiring Fancy Cabochon (16 x 15 mm) Un-Heated Mexico Matrix Fire Opal Loose Gemstone
  8. New 14.28 ct Pretty Fancy Cabochon (23 x 15 mm) Un-Heated Mexico Matrix Fire Opal Loose Gemstone
    14.28 ct Pretty Fancy Cabochon (23 x 15 mm) Un-Heated Mexico Matrix Fire Opal Loose Gemstone
  9. New 10.34 ct Eye-opening Oval Cabochon (16 x 13 mm) Un-Heated Mexico Matrix Fire Opal Loose Gemstone
    10.34 ct Eye-opening Oval Cabochon (16 x 13 mm) Un-Heated Mexico Matrix Fire Opal Loose Gemstone
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