Certified natural opal gemstone

Certified natural crystal opal gemstone featuring a beautifully proportioned oval cabochon natural opal weighing 0.66 carats, professionally sealed and accompanied by official Gem Report Antwerp certification. This elegant loose crystal opal displays attractive white body color combined with vivid play-of-color effects, creating a refined and visually captivating gemstone suitable for luxury jewelry manufacturing, bespoke gemstone jewelry, artisan jewelry design, collector gemstone portfolios, and fine colored gemstone sourcing.

The gemstone measures approximately 7.96 x 6.13 x 2.21 mm and is fashioned as an oval cabochon cut, the classic and most desirable cutting style for fine opals due to its ability to maximize color play, surface brilliance, and internal optical phenomena. The translucent crystal opal body allows light to interact beautifully within the gemstone, producing lively flashes of spectral color across the surface and enhancing the stone’s natural visual depth and iridescent character.

Accompanied by Gem Report Antwerp certificate number 1830016199 AN dated 26 February 2026, this Antwerp certified natural crystal opal reflects the longstanding prestige and international reputation of the Antwerp gemstone trade. The laboratory identifies the gemstone as natural opal, crystal opal variety, with translucent transparency and white body color displaying play-of-color phenomena. The report further notes that there are no indications of treatment, an especially desirable characteristic within the global opal market where untreated natural opals are highly valued for their authenticity and collector appeal.

The gemstone exhibits soft white to creamy body tones enhanced by vivid flashes of green, yellow, orange, and subtle rainbow spectral reflections visible under changing light conditions. This natural play-of-color effect is the defining feature of fine opal gemstones and creates the organic iridescence and shifting visual beauty that make natural crystal opals highly sought after within the luxury jewelry and colored gemstone market.

This natural loose crystal opal performs beautifully in yellow gold, rose gold, white gold, platinum, and artisan silver jewelry settings, making it ideal for opal engagement rings, luxury pendants, cocktail jewelry, designer earrings, artisan handcrafted creations, and bespoke gemstone-centered jewelry. The elegant oval cabochon shape and balanced proportions provide excellent versatility for both contemporary jewelry aesthetics and vintage-inspired fine jewelry designs.

The gemstone offers strong appeal for opal collectors, gemstone investors, jewelry ateliers, artisan goldsmiths, luxury jewelry manufacturers, and colored gemstone dealers seeking natural untreated opals with certified origin and strong visual character. The combination of untreated natural crystal opal composition, translucent clarity, vivid play-of-color, and classic oval cabochon cutting creates an attractive opportunity within the international opal and fine gemstone market.

Ideal for bespoke jewelry design, luxury opal jewelry collections, gemstone restoration projects, artisan jewelry manufacturing, collector gemstone portfolios, and premium handcrafted jewelry, this natural crystal opal delivers timeless elegance and enduring gemstone appeal. The lively spectral color flashes and natural untreated character make the gemstone especially attractive for fine jewelry requiring individuality, iridescence, and organic gemstone beauty.

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