1 pcs Blue Tanzanite - 15.89 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

1 pcs Blue Tanzanite - 15.89 ct - Antwerp Laboratory for Gemstone Testing (ALGT) #1.0
1 pcs Blue Tanzanite - 15.89 ct - Antwerp Laboratory for Gemstone Testing (ALGT) #1.0
1 pcs Blue Tanzanite - 15.89 ct - Antwerp Laboratory for Gemstone Testing (ALGT) #2.1
1 pcs Blue Tanzanite - 15.89 ct - Antwerp Laboratory for Gemstone Testing (ALGT) #3.2
1 pcs Blue Tanzanite - 15.89 ct - Antwerp Laboratory for Gemstone Testing (ALGT) #4.3
00
days
01
hour
15
minutes
30
seconds
Current bid
€ 105
Reserve price not met
Alberto Fidalgo
Expert
Selected by Alberto Fidalgo

Qualified goldsmith, gemmologist and diamond dealer with over fifteen years experience.

Retail Estimate  € 2,400 - € 2,900
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Description from the seller

ALGT Colored Stone Identification Report n. 55000543 (28 July, 2026)
Natural Zoisite
Tanzanite
Cshion Shape, Mixed Cut
Ct. 15.89
14.31 x 12.27 x 9.68
Deep Purplish BLue
Transparent
Origin from Tanzania
Moderate amount of clarity enhancement in fissures

AIG Gemstone Report n. GEM20260417165429 (17 Apr 2026)

Seller's Story

Private collector. Offers selected colored gems.

ALGT Colored Stone Identification Report n. 55000543 (28 July, 2026)
Natural Zoisite
Tanzanite
Cshion Shape, Mixed Cut
Ct. 15.89
14.31 x 12.27 x 9.68
Deep Purplish BLue
Transparent
Origin from Tanzania
Moderate amount of clarity enhancement in fissures

AIG Gemstone Report n. GEM20260417165429 (17 Apr 2026)

Seller's Story

Private collector. Offers selected colored gems.

Details

Number of stones
1
Lab report number
55000543
Gemstone type
Tanzanite
Total carat weight
15.89
Gemstone colour
Blue
Transparency
Transparent
Treatment
Not specified in the report
Origin as given on certificate
Tanzania
Laboratory report
Antwerp Laboratory for Gemstone Testing (ALGT)
Sealed by laboratory
No
Shape
Cushion
Cutting style
Mixed cut
Sold by
VinceRiver
ItalyVerified
1913
Objects sold
99.51%
590
Reviews
Privatetop

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