Bidspirit auction | Pt900 Platinum 7.90ct Natural Black

Pt900 Platinum 7.90ct Natural Black Opal and 0.56ctw Natural Diamond Pendant Necklace W/CGL Report - This platinum pendant necklace is crafted from Pt900 and Pt850 platinum and centers a significant natural black opal. The central gemstone is an oval buff-top cut natural black opal weighing 7.90ct, measuring 19.1 x 11.6 x 5.3 mm. The stone displays a strong play-of-color with vibrant green and blue flashes against a dark base and is secured by four prongs. It is encircled by a halo of round brilliant cut natural diamonds totaling 0.56ctw. The pendant features an open-work geometric gallery and is suspended from a fine cable-link platinum chain with a spring ring clasp. The reverse of the pendant is stamped 7.90, Pt900, and D 0.56, and the chain clasp tag is stamped Pt850. The piece is accompanied by a Gem Identification Report from the Central Gem Laboratory in Japan, identifying the stone as a natural black opal. Chain Length: 40 cm (15.75 inches). Pendant Length: 25 mm (0.98 inches). Weight: 18.9 grams.