Premium Koroit Matrix Boulder Opal

Premium Koroit Matrix Boulder Opal

This striking Koroit Matrix Boulder Opal is a powerful expression of Australia’s ancient opal fields, showcasing a captivating interplay of earthy ironstone and vibrant natural color. Measuring an impressive 49 × 37 mm and weighing 111 carats, this substantial cabochon commands attention the moment it is seen.

Intricate, vein-like patterns of opal wind organically through the rich chocolate-brown ironstone matrix, igniting flashes of electric blue, teal, green, and golden hues that shimmer as the stone moves under light. Fine pinfire sparkles appear throughout, adding depth and complexity to the surface and giving the piece a dynamic, living quality.

Expertly polished to a smooth, lustrous finish, this opal preserves the raw beauty of its natural formation while offering a refined presentation suitable for a bold statement pendant or a standout addition to a serious gemstone collection. The stone is solid and well-balanced, with color distributed across the face rather than isolated patches — a hallmark of quality Koroit matrix material.

Details

Type: Natural Koroit Matrix Boulder Opal

Origin: Queensland, Australia

Dimensions: 49 × 37 mm

Weight: 111 carats

Cut: Freeform cabochon

Colors: Blue, teal, green, gold with natural ironstone matrix

Finish: High polish

This one-of-a-kind opal is ideal for collectors, designers, or anyone drawn to gemstones with strong character, organic beauty, and unmistakable presence. No two Koroit opals are ever the same — and this exceptional piece is truly singular.