Details
Oval black opal cabochon, trapezoid-shaped and old-cut diamonds, platinum, signed Tiffany & Co. (partially obscured)

GIA, 2024, report no. 5234372274: natural opal, natural color, no indications of color treatment

Black opal: with approximate weight of 11.90 - 12.10 carats
Diamonds: 2 trapezoid-shaped and 6 old-cut with approximate total weight of 0.90 - 1.10 carats

Size/Dimensions: US ring size 612
Gross Weight: 8.3 grams
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