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a close up of a blue sapphire and diamond ring on a white backgroundan image of a blue sapphire and diamond ring on a white backgrounda close up of a ring with a blue sapphire surrounded by white diamondsa close up of a diamond and sapphire ring on a white backgroundan image of a ring with a sapphire stone in ita close up of a silver ring with a blue stone in ita close up of a ring with a diamond on it
BOISGIRARD - ANTONINI

Estimate €3,500 - €4,000
Sale commission
Description
DAISY RING Sapphire and diamonds A daisy ring in platinum and 18-carat white gold (750 ‰), centred on a sapphire surrounded by a radiant setting of ten brilliant-cut diamonds. The sapphire: natural corundum, from Sri Lanka (Ceylon), no thermal treatment detected (unheated); cushion cut (brilliant / stepped); dimensions 8.48 × 6.61 × 3.90 mm; weight 2.23 ct (report from the French Gemmological Laboratory no. 426459 dated 17 June 2026). French craftsmanship, second half of the 20th century, platinum and 18-carat white gold (750 ‰) setting; hallmarks: dog’s head (platinum) and eagle’s head (gold); master’s mark illegible. Ring size: 57 — Gross weight: 8.1 g.
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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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