Go Back to Upcoming LotsPlatinum Sapphire and Diamond Ring
Article
1184693Location
Illinois, United StatesFull address: Available with subscription
Closing at
November 18, 2025Lot Number
Available with subscriptionCategory
RingBrand
KobiDimensions
Ring Size 5.25Material
950 PlatinumGross Weight
16.59 gStone Weight
Sapphire 4.30 ct, Diamonds 1.68 ctClarity
VS–SIDiamond Color
G-HGemstone
Sapphire, DiamondGender
WomenDescription
Platinum ring marked ‘Kobi Plat’, set with an emerald-cut sapphire measuring 11.75 × 8.16 × 4.57 mm and weighing approximately 4.30 carats; blue color with strong saturation and very dark tone, eye clean with minor chipping. Mount further set with twenty-four princess cut diamonds (average 2.15 × 2.15 mm) weighing approximately 1.68 carats total, G–H color, VS–SI clarity. XRF tested as 97% platinum. Gross weight 16.59 g, ring size 5.25. All gemstones tested on the heat conductivity scale; quality undetermined. It cannot be guaranteed that the gemstones have not been heat treated or filled, or that they are natural.Condition
Available with subscriptionProvenance
Property from an Estate, Chicago (Near North Side), IllinoisStarting Bid: $700
Estimates: $1,400 – $1,600
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