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1.20 Ct. Multi Color Cabochon Boulder Opal (Ironstone Opal) from Australia
This loose stone is available to ship now
Item ID: | K20782 |
|---|---|
Dimensions (MM): help | Length: 7.34 Width: 6.22 Height: 3.97 |
Weight: | 1.20 Ct. |
Color: help | Multi Color |
Color intensity: help | Intense |
Clarity: help | Not Applicable |
Shape: help | Oval |
Cut: | Cabochon |
Cutting style: | Cabochon |
Enhancements: help | No Enhancement |
Origin: help | Australia |
Per carat price: help | $1,800 |
This boulder opal is an opaque, multi color specimen weighing 1.20 carat, presented in a classic oval outline with dimensions 7.34 x 6.22 x 3.97 mm. The cutting style is cabochon, a choice that accentuates the stone's intense color intensity and broad flashes of hue across the dome. The surface exhibits an excellent polish and symmetrical proportions, qualities that maximize visual impact and ease of setting. The stone is untreated, no enhancement, which preserves the natural character of the opal and ensures that color and structure are inherent rather than laboratory altered. As a boulder opal, the piece integrates host ironstone matrix within or on its back, contributing to structural stability and offering distinctive patterning that is unique to each specimen.
The origin of this opal is Australia, the principal global source of high quality boulder opal, and that provenance materially adds to its value. Australian boulder opal is formed under specific geological conditions within ironstone seams, producing the layered structure and vibrant play of color that collectors and jewelers prize. Provenance from Australia conveys a combination of geological rarity, established mining history, and consistent quality standards, factors that inform appraisal, resale potential, and long term desirability. The Natural Gemstone Company documents this origin as part of our commitment to transparent sourcing and gemological accuracy. For practical use the cabochon profile and ironstone backing of a boulder opal favor secure bezel or partially bezel set designs that protect the high dome while showcasing the color. Routine care consists of avoiding prolonged exposure to extreme temperature changes and strong chemicals, and storing the opal separately to prevent abrasion. This specimen is suitable for use in rings, pendants, and bespoke pieces where the interplay of intense, natural color and the inherent durability of the boulder opal form are desired, offering a distinctive and verifiable natural gemstone option for discerning clients.
