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Art Deco pink sapphire, rock crystal and diamond oblong cluster ring, French c.1925, possibly by Rene Boivin, collet set with a rectangular cushion cut Burma pink sapphire,
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Late 19th / early 20th century graduated three stone square cushion cut diamond ring, c.1900, the central diamond of approximately 2.30ct,
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Emerald and diamond three stone ring, the octagonal step cut 1.61ct Colombian emerald, between old round brilliant cut diamonds,
