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312 - Natural colour-changing spinel from Tanzania, ranging from p…
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Estimate €3,000 - €3,500
Sale commission
Description
Natural colour-changing spinel from Tanzania, ranging from purplish blue to purple-pink. Colour change visible under incandescent light. No signs of heat treatment. 2.94 carats · Octagonal · Purplish blue to purple-pink CERTIFICATE OF AUTHENTICITY STONE Natural spinel, colour-changing ORIGIN Tanzania QUALITY On request CERTIFICATE GIL Canada Report STO2025052870880 · 28 May 2025 CARAT 2.94 ct · 9.35 × 7.07 × 4.76 mm TREATMENT No indication of heating SETTING Stone unmounted
See original version (French)
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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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