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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 Boulder Opal Shape: Oval Cut: Cabochon Color: Rainbow Pattern: Matrix Size (mm): 18x13x6 Weight (ct): 12.2 Brightness rating (1-5): 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BO66 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 20x15x9 Weight (ct): 14.1 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO411 -
Gem Origin: Australia Gem Type: Boulder Opal Color: Blue, Aqua, Purple, Green, Black Setting: 14k Yellow Gold Stone Size (mm): 41x14 (appx) Combined Size (mm): 53x39 (appx) Combined Weight (ct): 176.90 GbG ID: BO74 -
Origin: Queensland, Australia Opal Type: Solid Boulder Opal Shape: Rhombus Color: Green / Common Blue Pattern: Matrix Size (mm): 22x16x4 Weight (ct): 15.3 Brightness rating (1-5): 2 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BO62 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 22x15x8 Weight (ct): 15.65 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO406 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 25x16x7 Weight (ct): 15.7 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO418 -
Origin: Queensland, Australia Opal Type: Solid Boulder Opal Shape: Freeform Color: Dark Blue Pattern: Floral Weight (ct): 20 Dimensions (mm): 18x14x7 Brightness rating: Subdued Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated Setting: Drilled for pendant GbG ID: BO38 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 24x15x10 Weight (ct): 21.25 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO413 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 20x15x9 Weight (ct): 22.65 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO412 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 26x17x10 Weight (ct): 24.95 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO420 -
Origin: Queensland, Australia Opal Type: Solid Boulder Opal Shape: Freeform Color: Green / Blue Pattern: Pinfire Weight (ct): 27.1 Dimensions (mm): 27x17x5 Brightness rating: Brilliant Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BO7 BO-7 Video -
Origin: Queensland, Australia Opal Type: Solid Boulder Opal Shape: Square Color: Rainbow Pattern: Matrix Weight (ct): 27.75 Size (mm): 10x10x3 Brightness rating: 2 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BO60-6 -
Origin: Spencer, ID Opal Type: Solid Boulder Opal Shape: Cabochon Color: Green / Purple Pattern: Matrix, Straw Weight (ct): 28.8 Dimensions (mm): 37x24.5x4.5 Brightness rating(1-5): 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BO57 -
Origin: Queensland, Australia Opal Type: Solid Boulder Opal Shape: Round Cut: Cabochon Color: Green / Blue / Pink / Orange Pattern: Matrix Size (mm): 10.5x10.5x4 Weight (ct): 3.1 Brightness rating (1-5): 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BO65 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 29x21x8 Weight (ct): 30.55 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO400 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 30x20x10 Weight (ct): 31.5 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO408 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 30x17x10 Weight (ct): 31.9 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO414 -
Origin: Queensland, Australia Opal Type: Solid Boulder Opal Shape: Freeform Color: Green / Blue Pattern: Floral Weight (ct): 33.35 Dimensions (mm): 32x15x8 Brightness rating: Subdued Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated Setting: Drilled for pendant GbG ID: BO22 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 31x21x9 Weight (ct): 33.7 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO410 -
Origin: Queensland, Australia Opal Type: Solid Boulder Opal Shape: Freeform Color: Blue Pattern: Matrix Weight (ct): 37.3 Dimensions (mm): 37x19x6 Brightness rating: Subdued Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated Setting: Undrilled for pendant GbG ID: BO52 -
Origin: Spencer, ID Opal Type: Solid Boulder Opal Shape: Oval Cut: Cabochon Color: Green / Blue / Orange Pattern: Matrix, Straw Size (mm): 38.5x25x6.5 Weight (ct): 40 Brightness rating (1-5): 3 Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated GbG ID: BO58 -
Origin: Queensland, Australia Opal Type: Solid Boulder Opal Shape: Freeform Color: Blue / Red / Orange / Metallic Pattern: Matrix Weight (ct): 44.5 Size (mm): 30x29x8 Brightness rating: Subdued Transparency: Opaque MOHS Hardness: 5.5 - 6.5 Treatment: Non-treated Setting: Drilled for pendant GbG ID: BO32 -
Origin: Mexico Opal Type: Fire Shape: Pear Cut: Cabochon Pattern: Matrix Size (mm): 13x10x8 Weight (ct): 5.55 MOHS Hardness: 5-5.5 Treatment: Not treated GbG ID: MO405
