No reserve price - 1 pcs Blue Topaz - 17.40 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - Sky Blue

00
days
11
hours
42
minutes
09
seconds
Current bid
€ 1
No reserve price
Francesca Floramo
Expert
Selected by Francesca Floramo

Graduate gemmologist from GIA with 20 years jewellery experience, specialising in brand jewellery.

Retail Estimate  € 300 - € 350
IT
€1

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Topaz, 1 stone, total 17.40 ct, blue Sky Blue, cushion-shaped rectangular, transparent, ALGT laboratory report 57185452.

AI-assisted summary

Description from the seller

ALGT Colored Stone Identification Report n. 57185452 (25 September, 2026)
Natural Topaz
Blue Topaz
Rectangular Cushion Shape, Concave Cut
Ct. 17.40
19.89 x 12.42 x 7.59
Blue
Transparent
Trade Color Name: Sky Blue

Seller's Story

Private collector. Offers selected colored gems.

ALGT Colored Stone Identification Report n. 57185452 (25 September, 2026)
Natural Topaz
Blue Topaz
Rectangular Cushion Shape, Concave Cut
Ct. 17.40
19.89 x 12.42 x 7.59
Blue
Transparent
Trade Color Name: Sky Blue

Seller's Story

Private collector. Offers selected colored gems.

Details

Number of stones
1
Lab report number
57185452
Gemstone type
Topaz
Total carat weight
17.40
Gemstone colour
Blue
Transparency
Transparent
Treatment
Not specified in the report
Laboratory report
Antwerp Laboratory for Gemstone Testing (ALGT)
Sealed by laboratory
No
Title additional information
Sky Blue
Shape
Cushion
Sold by
ItalyVerified
2008
Objects sold
99.53%
Privatetop

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