This 1.63 carat natural black opal from Lightning Ridge, Australia displays vibrant red, cyan, green, orange, yellow, and blue fire across a polished freeform cabochon. The full rainbow spectrum appears in bold patterns throughout the deep black body tone, creating exceptional contrast between brilliant multicolor fire and dark background. The freeform cabochon cut maximizes the play of color while maintaining organic proportions ideal for statement jewelry designs. Lightning Ridge opals are renowned worldwide for producing the finest black opals with exceptional fire, rarity, and investment grade quality.

Measuring approximately 14.8 × 7 × 2.4 millimeters, this black opal offers elongated proportions perfect for cocktail rings, modern pendants, or custom jewelry designs. The freeform shape suits both contemporary bezel settings and classic prong settings in yellow gold, white gold, platinum, or rose gold. This rare color gemstone pairs exceptionally well with diamonds for halo designs, three stone rings, or accent settings that enhance the opal's natural rainbow fire. Bespoke jewelry designers appreciate the full color spectrum and dramatic elongated shape for engagement rings, statement pieces, or one of a kind designs. The complete rainbow of colors creates visual impact sought after by serious collectors and jewelry connoisseurs.

This is a 100% natural, untreated solid black opal, not a doublet or triplet. The gemstone formed naturally in the legendary opal fields of Lightning Ridge, ensuring authentic Australian origin with investment grade quality. This rare find represents valuable addition to serious collections with strong long term value potential, prized for intense rainbow fire and distinctive freeform shape.

Lightning Ridge black opals like this piece represent exceptional Australian gemstones for fine jewelry collections. As the official opal October birthstone, this black opal offers October born individuals a premium piece that celebrates their birth month with extraordinary natural beauty. The complete rainbow fire, black body tone, elongated freeform shape, and Lightning Ridge provenance make this an excellent choice for engagement rings, statement jewelry, or investment pieces with museum quality appeal. This black opal will arrive securely packaged in an Opal Galaxy luxury gift box, ready for professional jewelry setting or safe storage.