Pink opal ring. The design it's just arrestingly beautiful but the opal is ... Starts with a C... A real opal that big would cost nothing less than 3000$. I really love opals, and I bought a tiny Australian one and it cost double of this. Why don't they just call it pink stone ring?
Black opal and diamond ring, circa 1920. The oval black opal measuring approximately 23.3 by 15.1 by 8.9 mm., the prongs set with 32 single-cut diamonds, mounted in platinum.
Tiffany & Co. An Art Nouveau Black Opal, Diamond and Enamel Necklace, 1900. The front suspending an oval cabochon black opal, within an enamel and circular-cut diamond frame, to the collet-set peridot and white opal gold chain, mounted in 14K yellow gold, length 23 inches. Signed ‘Tiffany & Co.’ Philips de Pury.