5.83 Ct. Boulder Opal from Australia

This striking Boulder Opal is a 5.83 carat, opaque freeform gem, expertly shaped in a tablet cut to showcase its intense play of color. Measuring 15.56 by 13.30 by 3.27 mm, this piece displays a rich tapestry of deep blues and vibrant greens set against a dark ironstone matrix that emphasizes contrast and depth. The surface shows an excellent polish that allows the fire and shimmer to read strongly from multiple angles, and the freeform outline gives it a natural, organic character that works beautifully for custom settings. This opal is from Australia, it has had no enhancement, and its intense color intensity and tablet cut make it a standout choice for collectors and designers seeking an authentic, high quality Boulder Opal.

At The Natural Gemstone Company we recommend this opal for a variety of jewelry applications, including a bezel set pendant, an artisan ring where the irregular freeform can be embraced, or a bespoke pair of earrings when paired with a complementary partner stone. The dark matrix and vivid blues and greens provide a dramatic focal point that pairs well with yellow gold for warmth, and with white gold or platinum to emphasize the cool tones. For care, avoid harsh chemicals and extended exposure to rapid temperature changes, and clean gently with a soft cloth and mild soapy water. Because this opal is opaque with a natural ironstone backing, it is more durable than many lighter opals, but it still benefits from thoughtful setting and occasional professional inspection. If you would like additional photos, angles, or assistance in selecting the ideal mounting style, our team at The Natural Gemstone Company is ready to help. We can advise on design choices that protect the stone and enhance its natural color play, and we can assist with custom fittings to create a piece that highlights this opal s unique beauty.