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11.40 Ct. Boulder Opal from Australia
This loose stone is available to ship now
Item ID: | K846 |
|---|---|
Dimensions (MM): help | Length: 35.5 Width: 8.4 Height: 4.3 |
Weight: | 11.40 Ct. |
Color: help | Multi Color |
Color intensity: help | Intense |
Clarity: help | Very Slightly Included |
Shape: help | Freeform |
Cut: | N/A |
Cutting style: | Tablet |
Enhancements: help | No Enhancement |
Origin: help | Australia |
Per carat price: help | $90 |
This Boulder Opal offered by The Natural Gemstone Company is an opaque, freeform shape specimen weighing 11.40 carat, with dimensions 35.50 x 8.40 x 4.30 mm. The cut is not applicable for this natural freeform, and the gem presents a clarity graded as very slightly included when evaluated at eye level. Color intensity is classified as intense, showing a lively multi color play that is particularly vivid in blues and greens under standard lighting. The surface finish is an excellent polish, and there has been no enhancement of any kind, preserving the opal in its natural state with original material and color. Origin is Australia, which is the primary and most respected source of high quality Boulder Opal, and the stone displays the characteristic thin opal layer over ironstone that defines this opal type.
As a Boulder Opal this piece benefits from the natural ironstone backing that lends structural stability and enhances color contrast, making the play of color appear more saturated and resistant to cracking compared to single layer opals. The very slightly included clarity grade indicates minor internal features that do not interfere with visual appeal at normal viewing distances, while the excellent polish maximizes light return and the scintillating flashes that collectors prize. For the educated buyer, the combination of a substantial 11.40 carat weight, intense color, Australian provenance, and absence of treatments positions this opal as a collectible and wearable gem, suitable for design forward settings where the unique freeform outline can be showcased. The long, thin profile and flat back make it particularly well suited to bezel settings, inlay work, or contemporary pendants that preserve the stone as a focal element.
From a practical and investment perspective this Boulder Opal is appealing because it requires no stabilization or enhancements, and the ironstone matrix provides greater durability for daily wear compared with some other opal varieties. Proper care involves avoiding harsh chemicals and sudden thermal shocks, and routine gentle cleaning with a soft cloth will maintain the polish and play of color. At The Natural Gemstone Company we curate and document our gems and we are available to provide additional photos, lighting views, and provenance details on request, ensuring you can assess this unique Australian Boulder Opal with the confidence of an informed purchase.
