Francesca Floramo

Coloured Gemstones Auction

ALGT Colored Stone Identification Report n. 83623152 (13 October, 2026)
Natural Zoisite
Tanzanite
Modified Octagon Shape, Step Cut
Ct. 2.83
9.86 x 6.94 x 3.89
Intense Violetish Blue
Transparent

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1 pcs  Blue Tanzanite  - 2.83 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - Intense Violetish Blue

Not specified in the report-  Lab report: 83623152

Italy

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Private collector. Offers selected colored gems.

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One transparent, 2.83-carat tanzanite in a modified octagon shape with a step cut, described as intense violetish blue, is sealed by ALGT and accompanied by report 83623152.

1 pcs Blue Tanzanite - 2.83 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - Intense Violetish Blue

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One transparent, 2.83-carat tanzanite in a modified octagon shape with a step cut, described as intense violetish blue, is sealed by ALGT and accompanied by report 83623152.

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