Platinum Onyx and Diamond Ring

Article
1216323Location
California, United StatesFull address: Available with subscription
Date
July 13, 2026 - July 21, 2026Lot Number
Available with subscriptionCategory
RingDimensions
Ring Size KMaterial
PlatinumGross Weight
3.50 gStone Weight
Diamond 0.40 ctGemstone
Onyx, DiamondDescription
Platinum ring set with an onyx plaque and an old brilliant-cut diamond weighing approximately 0.40 ct, with a rubbed "PLAT" stamp at the base of the inner hoop; ring size approximately K and gross weight approximately 3.50 g, with a bright and lively diamond.Condition
Available with subscriptionProvenance
No provenance providedEstimates: £800 – £1,200
Buyer's premiumSubscribe to Premium to unlock Buyer's Premium
Estimated TotalSubscribe to Premium to unlock estimate calculator
Each Jewelry aggregates lot information for discovery and research. Bidding and purchases take place through the original auction source where available.