a close up of a cushion cut diamond on a white backgrounda close up of a document with a picture of a person on itfour different views of a diamond ring with a knot around the band
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Premium Maîtres Martial Bournier & Guillaume Poivre

259 - Platinum ‘tank’-style ring (circa 1920–1930), set with a sin…
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Estimate €2,000 - €2,500
Description
Platinum ‘tank’-style ring (circa 1920–1930), set with a single 2.13 ct old cushion-cut diamond, colour: I, clarity: SI2, fluorescence: none, dimensions: 8.21 x 7.74 x 5.05 mm (comments: marked chips, evidence of the rough’s shape, additional facets), flanked by (x6) small rose-cut diamonds (tdd: 48 / pd bt: 7.7g) – Sold with its gemmological certificate dated 23/09/2026 – Lot certified by Mr Pierre Quillet, expert
See original version (French)
About the sale Jewellery, fashion and accessories for sale in Charleville-Mézières
Auction location
Auction time 10/17/2026 at 2:00 PM
Pictures credits: Contact the Auction House
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