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an image of a yellow and white diamond ringan image of a yellow and white diamond ring on a white surfacea silver knife with a diamond on the bladea close up of a yellow gold ring with two pear shaped diamondsan image of a yellow and white diamond ring on a white surfacean image of a pair of yellow and white diamond earringsan image of a yellow and white diamond ring with baguets
BOISGIRARD - ANTONINI

278 - ‘TOI ET MOI’ RING
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Estimate €25,000 - €35,000
Sale commission
Description
‘TOI ET MOI’ RING Unheated Ceylon yellow sapphire and diamond — French craftsmanship, Antonio Andujar ‘Toi et Moi’ ring in 18-carat yellow gold (750 ‰), featuring two interlocking bands: one set with an oval-shaped yellow sapphire, the other with a round-cut antique diamond, the shoulders set with twelve baguette-cut diamonds. The stones: — an oval-shaped yellow sapphire, 14.86 ct, natural corundum, with no evidence of heat treatment (unheated), from Sri Lanka (Ceylon); — a round antique-cut diamond, 9.69 ct, colour K, clarity SI1, faint fluorescence, no indication of treatment; — twelve baguette-cut diamonds set on the shoulders. French craftsmanship, circa 1980. Eagle’s head hallmark; master’s hallmark of the goldsmith and jeweller Antonio Andujar, 23 Rue Casanova, Paris, engraved on 28 February 1969. Ring size: 43.5 (two reduction balls added) — Gross weight: 15.10 g. Accompanied by two reports from the French Gemmological Laboratory: no. 426458 for the sapphire (17 June 2026) and no. 426405 for the diamond (15 June 2026).
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About the sale Charity sale in aid of the Petits Frères Des Pauvres charity
Auction location
Auction time 10/25/2026 at 10:00 AM
Pictures credits:
Boisgirard Antonini
See original version (French)
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