23.15 Ct. Multi Color Black Opal (Dark Opal) from Australia

This listing from The Natural Gemstone Company presents a fine example of Black Opal, Dark Opal, an opaque 23.15 carat freeform tablet that displays intense multicolor play. The gem measures 21.96 by 15.91 by 7.12 mm, and its tablet cutting style preserves both the thickness and the natural banding that characterize its optical appeal. From a grading perspective this opal scores highly on color intensity and polish, with an excellent surface finish that maximizes light return and play of color. Clarity in opals is expressed differently than in faceted gems, and this specimen is correctly described as opaque with strong, saturated flashes of blue and green across broad linear patterns, a feature prized by connoisseurs because it yields vivid brightness even under moderate lighting. The cut is reported as cut not applicable, which reflects the freeform tablet shaping used to retain the material and pattern, and there has been no enhancement, an important consideration for buyers seeking natural, untreated material.

Provenance and treatment status materially affect value, and this Australian origin Black Opal, Dark Opal, being untreated, commands interest from collectors and designers alike. Australian black opal is among the rarest opal varieties due to its dark body tone, which enhances color contrast, and the relatively limited commercial sources, making a 23.15 carat piece particularly noteworthy. For an educated buyer the technical strengths are clear, carat weight and substantial thickness give flexibility for high end settings while the tablet shape and excellent polish reduce the need for further cutting, preserving weight and pattern. When evaluating investment and aesthetic quality consider body tone, pattern uniformity, brightness, and stability, all of which this stone demonstrates. The Natural Gemstone Company stands behind the accuracy of the origins and enhancement declarations, and we present this Black Opal, Dark Opal as a natural, high intensity example suitable for collectors, bespoke jewelry designers, and investors who value provenance, untreated material, and superb optical performance.