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Founded in 1826, Lyon & Turnbull is a leading UK auction house with locations in London, Edinburgh & Glasgow. Specialising in Fine Art, Design, Jewellery, Watches, Antiques and Private Collections, we offer expert valuations, auctions and private sales.

Lyon & Turnbull | Online Auction Specialists   

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<p>The ring claw-set with a single oval-cut Sri Lankan sapphire, in a tall claw-setting each claw with a small round brilliant-cut diamond, to a bold band with hammered finish to reverse, stamped 750&nbsp;</p><p>With accompanying report by Gemmological Certification Services, dated 30.10.2026, numbered 5787-0329, stating that the sapphire is of natural Sri Lankan origin, showing no evidence of heat treatment.</p>

21st century

A Sri Lankan sapphire and diamond dress ring

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A Sri Lankan sapphire and diamond dress ring

21st century

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