Platinum Three Stone Ring with Rectangular Diamond and Blue Sapphires

Description

Platinum Three Stone Ring with Rectangular Diamond and Blue Sapphires
This vintage platinum cocktail ring features a striking three-stone design with a rectangular step-cut natural diamond and two emerald-cut natural sapphires. The diamond, prong set at the center, displays a brilliant white color and totals approximately 0.35 carats. Flanking the diamond are two deep blue sapphires, also prong set, with a combined weight of approximately 0.67 carats. The ring is crafted from solid .850+ platinum, stamped PT900, and has a finger size of 6.5. It is resizable and shows only light surface wear, reflecting its vintage character while remaining in excellent overall condition.

Specifications

Style: Cocktail
Type: Ring
Main Stone: Natural diamond
Main Stone Cut: Rectangular step cut
Main Stone Weight: Approximately 0.35 ct
Main Stone Color: White/Colorless
Secondary Stone: Natural sapphire
Secondary Stone Cut: Emerald cut
Secondary Stone Total Weight: Approximately 0.67 ct
Total Carat Weight: Approximately 1.02 ct
Metal: Solid .850+ platinum (tested), stamped PT900
Ring Size: 6.5 (resizable)
Ring Weight: 4.64 grams
Ring Width: 5.3 mm (top, north to south), 10.3 mm (east to west, sapphire to sapphire), 2.5 mm (bottom of shank)
Ring Height: 4 mm rise off finger
Condition: Vintage, pre-owned, excellent overall, light surface wear
Additional images available upon request.

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Condition

Pre-Owned

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Platinum Three Stone Ring with Rectangular Diamond and Blue Sapphires

Lot 1116W

Estimate $2,379-$3,092Jun 23, 2026, 6:00 AM EDT

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Wholesale Collectible Louis Chanel Hermes +++

Jun 23, 2026 6:00 AM EDT

New York, NY, United States

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