Black Opal, Diamond, Platinum Ring Stones: Opal cabochon; full-cut...

Black Opal, Diamond, Platinum Ring Stones: Opal cabochon; full-cut and marquise-shaped diamonds weighing a total of 0.37 carat Metal: Platinum Gross Weight: 11.70 grams Size: 7-1/4 (sizeable) HID09710052018 © 2024 Heritage Auctions | All Rights Reserved

Condition Report: Diamonds:Avg Color: G-H-IAvg Clarity: SIShape(s): Round, MarquiseColored Gems:Type(s): Black OpalShape(s): CabochonCount: 1 - 25Avg Quality: GoodMetals:PlatinumOverall Condition: GoodCondition Notes: This platinum ring showcases a mesmerizing black opal center stone, measuring approximately 9.50 x 7.50 x 4.00 mm, with vibrant play of green and blue colors. Encircling the opal are full-cut and marquise-shaped diamonds, collectively weighing 0.37 carats. One round diamond has been placed in a setting designed for a marquise near the center, and another diamond is slightly loose, though both remain secure. The ring is in good overall condition, marked "Pt 900, 037," this piece tests platinum with XRF, and the diamond weights are known.