Click below to learn more about our Black Opal

  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Oval Cabochon Color: Green / Blue / Purple Pattern: Pinfire Broad Weight (ct): 0.7 Dimensions (mm): 8x7x2 Brightness rating: 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK21 Money back guarantee within 14 days of delivery.
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Oval Cabochon Color: Green, Blue, Purple Pattern: Natural Weight (ct): 0.92 Dimensions (mm): 9.5x6x2.5 Brightness rating: 3.5 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK22
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Oval Cabochon Color: Blue / Purple Pattern: Flag Stone Weight (ct): 1.25 Dimensions (mm): 9.5x5.5x3 Brightness rating: 4 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK24
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Oval Cabochon Color: Green / Blue Pattern: Floral Weight (ct): 1.2 Dimensions (mm): 10x8x2 Brightness rating: 4 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK32
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Oval Cabochon Color: Blue / Green / Purple / Orange Pattern: Pinfire w/Matrix Weight (ct): 1.35 Dimensions (mm): 9.5x7.5x2.5 Brightness rating: 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK19
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Narrow Oval Cabochon Color: Rainbow Pattern: Ribbon Weight (ct): 1.4 Dimensions (mm): 10.5x6.5x4 Brightness rating: 4 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK27
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Freeform Cabochon Color: Pale multi Pattern: Flag Weight (ct): 11.35 Dimensions (mm): 20x18.5x5 Brightness rating: 4 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK16
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Freeform Cabochon Color: Green, Yellow, Orange, Red, Purple Pattern: Rolling flash Weight (ct): 3.25  Dimensions (mm): 13.5x10.5x3 Brightness rating: 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK23
  • Origin: Lightning Ridge, Austraila Opal Type: Solid Opal Shape: Oval Cabochon Color: Green Blue Pattern: Broad flash Weight (ct): 3.55 Dimensions (mm): 12.5x9x5 Thickness (mm): 5 Body Tone: N2 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK01
  • Opal Type: Solid Opal Shape: Oval Cabochon Triplet Color: Green / Blue / Purple Pattern: Broad Flash Dimensions (mm): 29.5x22x6 Weight (ct): 33.95 Brightness: 2 Body Tone: 7 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK14
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Freeform Cabochon Color: Green / Blue Pattern: Broad flash Weight (ct): 3 Dimensions (mm): 14x10.5x3.5 Brightness rating: 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK33
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Long Oval Cabochon Color: Rainbow White Pattern: Ribbon Weight (ct): 4.6 Dimensions (mm): 20.5x8x4 Brightness rating: 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK28
  • Origin: Queensland, Australia Opal Type: Solid Opal Shape: Freeform Color: Pink / Green / Orange Pattern: Floral Size (mm): 18x11x3.5 Weight (ct): 5.4 Brightness: 3 Body Tone: 5 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK15
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Freeform Kite Color: Green / Blue / Pink / Orange / Yellow Pattern: Floral Weight (ct): 5 Dimensions (mm): 16x12x4 Brightness rating: 4 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK18
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Freeform Color: Green / Purple / Orange Pattern: Broad Ribbon Weight (ct): 6.25  Dimensions (mm): 16x13x4.5 Brightness rating: 4 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK26
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Freeform Color: Rainbow Pattern: Broad flash Weight (ct): 6.7 Dimensions (mm): 25x12x2.5 Brightness rating: 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK25
  • Origin: Queensland, Australia Opal Type: Solid Black Opal Shape: Freeform Color: Rainbow Pattern: Mix Weight (ct): 8 Dimensions (mm): 23.5x15x3 Brightness rating: 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BK30

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