Australian Black Opal Cabochon
This is a significant natural Australian Black Opal, weighing 1.1 grams and measuring 1.6 inches by 1 inch. The stone is cut into a classic oval cabochon shape with a smooth, high-polished dome that enhances its inner light. It exhibits a striking 'play-of-color' dominated by vibrant electric greens and deep cobalt blues set against a dark body tone. The fire pattern is fragmented and dynamic, showing a 'flagstone' style where distinct patches of color shift as the light changes. Purchased in 1968, the specimen is nearly 60 years old and remains in excellent condition with no visible cracks or surface abrasions, indicating high-quality hardness and careful preservation. The internal geometry of the color flashes suggests a genuine sedimentary origin, consistent with premium Lightning Ridge material. The craftsmanship of the cut is symmetrical and professional, maximizing the surface area and brilliance of the gemstone's natural inclusions.
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Estimated Value
$2,500 - $4,500
Basic Information
Category
Gemstones and Jewelry
Appraised On
April 30, 2026
Estimated Value
$2,500 - $4,500
Additional Details Provided By Owner
User Provided Information
Category: Other Australian Black Opal purchased in 1968, I have receipt. Weight: 1.1 grams Dimensions: 1.6 inches x 1 inch Age: 58 years Condition: great
Item Description
This is a significant natural Australian Black Opal, weighing 1.1 grams and measuring 1.6 inches by 1 inch. The stone is cut into a classic oval cabochon shape with a smooth, high-polished dome that enhances its inner light. It exhibits a striking 'play-of-color' dominated by vibrant electric greens and deep cobalt blues set against a dark body tone. The fire pattern is fragmented and dynamic, showing a 'flagstone' style where distinct patches of color shift as the light changes. Purchased in 1968, the specimen is nearly 60 years old and remains in excellent condition with no visible cracks or surface abrasions, indicating high-quality hardness and careful preservation. The internal geometry of the color flashes suggests a genuine sedimentary origin, consistent with premium Lightning Ridge material. The craftsmanship of the cut is symmetrical and professional, maximizing the surface area and brilliance of the gemstone's natural inclusions.
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