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someone is holding a pair of pliers with a blue diamond in ita pair of tongs with a blue stone on ita close up of a pair of pliers holding a blue sapphirea close up of a pair of tongs holding a blue sapphirean image of a blue diamond is on display in a display case
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313 - Natural spinel from Tanzania, a deep, vivid cobalt blue, ste…
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Estimate €4,000 - €5,000
Sale commission
Description
Natural spinel from Tanzania, a deep, vivid cobalt blue, stepped octagon cut. Neither heated nor treated. GFCO Gem Lab report, Switzerland, dated 22 January 2026. 3.10 carats · Step-cut octagon · Vivid blue CERTIFICATE OF AUTHENTICITY STONE Natural spinel ORIGIN Tanzania QUALITY On request CERTIFICATE GFCO Gem Lab, Switzerland Report dated 22 January 2026 · number on request CARAT 3.10 ct · 9.24 × 7.22 × 5.28 mm TREATMENT Neither heated nor treated SETTING Stone unmounted
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About the sale Watches, Leather Goods, Precious Stones and Jewellery
Auction location
Auction time 09/13/2026 at 2:00 PM
Pictures credits: Contact the Auction House
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