• Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Cut: Cabochon Color: Green / Blue / Orange Pattern: Rolling Flash Transparency: Translucent Brightness rating (1-5): 4 Size (mm): 16x13.5x4.5 Weight (ct): 5.65 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY50
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Green / Blue / Purple Pattern: Straw Transparency: Translucent Brightness rating (1-5): 2 Size (mm): 18x13x4 Weight (ct): 6.05 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY30
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Rainbow Pattern: Flagstone Transparency: Translucent Brightness rating (1-5): 2 Size (mm): 17x13x4 Weight (ct): 6.6 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY27
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Rainbow Pattern: Flagstone Transparency: Translucent Brightness rating (1-5): 3 Size (mm): 20x12x3 Weight (ct): 6.85 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY10
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Green / Blue / Orange Pattern: Straw Transparency: Translucent Brightness rating (1-5): 3 Size (mm): 22x12x3 Weight (ct): 6.9 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY17
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Green / Blue / Orange Pattern: Ribbon / Pinfire Transparency: Translucent Brightness rating (1-5): 4 Size (mm): 24x10x4 Weight (ct): 7.15 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY09
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Rainbow Pattern: Floral Transparency: Translucent Brightness rating (1-5): 3 Size (mm): 20x12x3.5 Weight (ct): 7.1 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY29
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Orange / Green / Blue Pattern: Flagstone Transparency: Translucent Brightness rating (1-5): 3 Size (mm): 17x13x4 Weight (ct): 7.2 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY06
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Green / Blue / Orange / Yellow Pattern: Straw Transparency: Translucent Brightness rating (1-5): 4 Size (mm): 20x15x3.5 Weight (ct): 8.05 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY23
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Orange / White Pattern: Broad Flash Transparency: Translucent Brightness rating (1-5): 3 Size (mm): 24x13x3.5 Weight (ct): 8.25 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY02
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Green / Blue / Purple Pattern: Pinfire Transparency: Translucent Brightness rating (1-5): 3 Size (mm): 19x14x4 Weight (ct): 8.3 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY48
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Rainbow Pattern: Flagstone Transparency: Translucent Brightness rating (1-5): 4-5 Size (mm): 20x15x4 Weight (ct): 9.55 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY18
  • Origin: Coober Pedy, Australia Opal Type: Crystal Opal Shape: Oval Color: Green / Blue / Orange Pattern: Broad Flash Transparency: Translucent Brightness rating (1-5): 4 Size (mm): 24x14x4 Weight (ct): 9.9 MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: CY13

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