2.16 Ct. Cabochon Black Opal from Australia

This exquisite Black Opal from Australia, offered by The Natural Gemstone Company, is a transparent 2.16 carat oval multi color specimen with precise dimensions of 13.02 x 8.12 x 3.31 mm. The gem is fashioned as a cabochon with an expertly controlled domed geometry, a shaping approach that performs the role of geometric faceting by optimizing entry and exit angles for light, which in turn maximizes the internal diffraction that produces play of color. The surface displays an excellent polish, and the stone exhibits intense color intensity across a vivid spectrum of greens, blues, and flashes of warmer tones. Clarity is graded as very slightly included, evaluated at eye level, meaning inclusions are minimal and do not detract from the visual impact or structural integrity of the gem. No enhancement has been applied, preserving its natural character and ensuring that collectors and connoisseurs receive an authentic Australian Black Opal in its original state.

From a gemological and practical perspective this piece is valuable for several reasons, and those reasons will appeal to an educated buyer. The transparent body combined with strong play of color is a rare and desirable combination in Black Opals, allowing light to penetrate and interact with the ordered silica spheres that cause diffraction, which creates vibrant shifting color with movement. The cabochon dome has been calibrated to a geometric profile that acts like faceting, directing light into optimal planes and enhancing color contrast and flicker without altering the stone through treatments. At 2.16 carats the size is noteworthy for a high quality Black Opal, and the oval shape makes it highly versatile for both classic and contemporary settings that showcase the surface area and color dynamics. For designers and collectors seeking a centerpiece stone, this opal offers intense, clean color, reliable polish, and natural origin provenance from Australia. The Natural Gemstone Company stands behind its grading and presentation, and we are pleased to offer detailed imaging and handling guidance for setting this opal to maximize its optical performance and longevity.