DescriptionArt Deco Black Opal, Diamond, Platinum Ring  Stones: Black opal cabochon; transitional-cut diamonds weighing a total of approximately 0.75 carat; rose-cut diamonds Metal: Platinum Gross Weight: 4.62 grams Size: 7-3/4 (sizeable) AGL Report # 1128775, dated January 23, 2023 stating Natural Black Opal, Australia Origin,  No Evidence of Enhancements HID01801242017品相报告: Condition ReportDiamonds:Avg Color: G-H-IAvg Clarity: VSShape(s): Rose, TransitionalCount: 1 - 25Colored Gems:Certified Gems:Gem: 1Lab: AGLCertification #: 1128775Shape: Oval CabochonOrigin: AustraliaTreatment: NoneType: Natural Black OpalMetals:PlatinumOverall Condition: GoodCondition Notes: A simple, gorgeously colored opal in a delicate Art Deco mounting. The opal displays vivid colors. Only having some scratches and surface pits commensurate with normal wear. Heritage Auctions strongly encourages in-person inspection of items by the bidder. Statements by Heritage regarding the condition of objects are for guidance only and should not be relied upon as statements of fact, and do not constitute a representation, warranty, or assumption of liability by Heritage. All lots offered are sold ''AS IS''