- Stone12
- Reports2
5.83 Ct. Multi Color Boulder Opal from Australia
This loose stone is available to ship now
Item ID: | K12747 |
|---|---|
Dimensions (MM): help | Length: 15.56 Width: 13.3 Height: 3.27 |
Weight: | 5.83 Ct. |
Color: help | Multi Color |
Color intensity: help | Intense |
Clarity: help | Not Applicable |
Shape: help | Freeform |
Cut: | Polished |
Cutting style: | Tablet |
Enhancements: help | No Enhancement |
Origin: help | Australia |
Per carat price: help | $380 |
This is an opaque, freeform Boulder Opal weighing 5.83 carat, with dimensions 15.56 x 13.30 x 3.27 mm. The cabochon features an expertly polished cut with excellent surface finish, and an intense, multi color play that shifts predominantly through deep blues and vivid greens. Origin is Australia, and there has been no enhancement, the piece remaining in its natural state as mined. The freeform outline and moderate thickness make this specimen well suited for custom jewelry applications where the irregular silhouette and striking color patches can be shown to their best advantage. The Natural Gemstone Company presents this stone as an example of quality Australian boulder material, where the opal seam rests against its ironstone host, providing a contrasting backdrop that emphasizes the opal layer and enhances perceived depth and saturation.
Inclusions and natural matrix patterns are described here as important identifiers, and not as flaws. In this Boulder Opal the ironstone patches and internal color zoning are intrinsic features that serve as a fingerprint for the stone, confirming natural formation and provenance. These inclusions create contrast that intensifies the visible play of color, and they provide a map of the original seam, showing how the opal formed within the host rock. Variations in opacity, tiny cavities filled with opal, and the distribution of the ironstone matrix give this piece individual character, influencing how light refracts and how color appears from different angles. For designers and connoisseurs, these natural markers aid in matching material across pairs, verifying authenticity, and appreciating the geological story contained within each stone. The piece benefits from settings that protect the thinner edges while allowing the table and larger color patches to remain visible. As an unenhanced Australian Boulder Opal, it carries both visual distinction and the practical advantages of increased durability from the host rock, making it suitable for rings, pendants, and bespoke pieces that respect the stone structure and showcase its singular inclusions.
