Sun, Apr 17, 2016 10:00AM EDT - Mon, Apr 18, 2016 10:00AM EDT
An oval gray opal cabochon, 12.4 cts. by formula, set in textured 18k yellow gold. London, ca. 1970. Interior tag marked Grima AG LTD. Size 4. 10 dwt. Provenance: From a Chicago Estate.
Opal with blue and green pin fire. Opal: 23.14 x 14.77 x 9 mm. No defects or crazing detected.