3.24 Ct. Multi Color Boulder Opal (Ironstone Opal) from Australia

This listing describes one opaque 3.24 carat oval shape Boulder Opal, Ironstone Opal, with precise dimensions of 12.84 x 9.16 x 3.07 mm. The gem has been cut in a tablet style, presenting a broad flat table that emphasizes the stone surface and the play of color contained within. The cutting and polishing have been executed to produce an excellent polish across the table and crown, with the ironstone matrix retained around the girdle to preserve structural integrity. The piece is of Australian origin, and there are no enhancements. The Natural Gemstone Company provides this description to document the objective characteristics of this specimen, including weight, measurements, cut, polish, and enhancement status.

Color performance on this Boulder Opal is intense, and the tablet cut maximizes the visible band of multicolor fire across the surface. The opal displays a vivid range of hues, including saturated greens, deep blues, and warm reds, that appear in linear patches and flashes along the central axis of the table. The ironstone substrate provides a dark, stable background that enhances the contrast and makes the colors read as more concentrated when viewed face up. Clarity in the context of this opal is best understood as the absence of disruptive surface pits or fracture lines through the play of color, and the specimen exhibits a clean display area across the majority of the table, which is a valuable attribute for a stone of this type and size.

The dimensions and weight of this opal place it squarely in the range suitable for a single stone statement piece. At 12.84 x 9.16 mm and 3.24 carats, the oval tablet presents a generous visual field without excessive thickness, making it appropriate for a variety of settings where the play of color can be presented prominently. The broad tabletop allows the opal to show its color pattern at multiple viewing angles, and the consistent polish contributes to a strong luster. For design integration, the stone will perform well in pendant formats where the entire face is visible, and in ring settings where the stable ironstone backing can be used to secure the gem with minimal risk of edge chipping. The balance of size, surface clarity, and color intensity makes this specimen optimal for a singular focal element in a refined, understated setting.

Provenance, treatment, and handling recommendations are important to document for pieces intended for long term wear. This Boulder Opal is untreated, and its origin in Australia situates it within the principal geographic source for ironstone hosted opals. The retention of the ironstone matrix provides additional mechanical support, and the tablet cut reduces stress concentration compared to more aggressive facetting of thin opal layers. Care should follow standard practices for opal materials, avoiding sudden temperature changes and rigorous mechanical impact, and recommending secure bezel or bar settings that protect the girdle while allowing unobstructed view of the table. The Natural Gemstone Company stands behind the accuracy of the recorded specifications, and offers this gem as a clearly defined, well documented example of a multi color Boulder Opal, Ironstone Opal, suited to applications where size and surface clarity are essential to the design outcome.