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an oval blue sapphire and diamond ring on a black surfacean image of a blue sapphire and diamond ringan oval blue sapphire and diamond ring on a reflective surfacean image of a blue sapphire and diamond ring on a black surfacea close up of a ring on a black surface with a black backgrounda picture of a product description for a hair product
ALEXANDRE LANDRE - NANCY

4 - An 18K white gold (750/1000) ring featuring, at its centre, …
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Estimate €400 - €600
Sale commission
Description
An 18K white gold (750/1000) ring featuring, at its centre, a natural cushion-cut ‘colour-change’ sapphire in shades of blue, mauve and purple, weighing 6.37 carats, set within a circle of diamonds. A certificate from the Gemological Consultancy laboratory is included, stating ‘no heat treatment observed’. French craftsmanship from the 20th century. TDD: 55. Gross weight: 6.7 g.
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About the sale Lorraine Residences – From the Polish Court to the Great Collections of Lorraine
Auction location
Auction time 10/03/2026 at 2:00 PM
Lot description modified on 09/23/2026 at 6:02 PM
Pictures credits: Contact the Auction House
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