No reserve price Blue Topaz - 47.32 ct - Antwerp Laboratory for Gemstone Testing (ALGT) - Fine Color Quality
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Current bid
€ 1
No reserve price
Expert
Selected by Francesca Floramo
Graduate gemmologist from GIA with 20 years jewellery experience, specialising in brand jewellery.
Retail Estimate € 800 - € 950
 | €1 |
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Natural blue topaz, 47.32 carats, triangle shape with a mixed cut, transparent, colour described as Swiss Blue with Fine Color Quality, ALGT identification report 94019194, origin not specified, treatment often irradiated without proof of treatment.
AI-assisted summary
Description from the seller
**ALGT Colored Stone Identification Report**
**Identification**
Species: Natural Topaz
Variety: Blue Topaz
**Description**
Shape & Cutting Style: Triangle, Mixed Cut
Measurements: 23.53 × 24.09 × 12.35 mm
Carat Weight: 47.32 Carat
Color: Vivid Blue
Transparency: Transparent
**Additional Grading Characteristics**
Trade Color Name: Swiss Blue
Color Quality Grade: Fine Color Quality
**Comments**
Blue topaz is commonly enhanced by irradiation and/or heating to improve its color. There is currently no scientific method available to determine whether this gemstone has been enhanced or not.
The photos were taken in a professional studio with extensive lighting to enhance the visibility of the color variations.
The images have not been edited in order to present the most realistic representation possible.
Color deviations may occur depending on the display settings of your computer, monitor, or smartphone.
Well packed and insured registered shipping.
Please feel free to take a look at my other listings and offers as well!
Seller's Story
At Terra Gems, we specialize in natural gemstones carefully selected for collectors, jewelry lovers and gemstone enthusiasts. We focus on offering genuine stones with clear descriptions, accurate photos and reliable information.
Customer satisfaction is very important to us. Every order is packed with care and shipped securely with tracking.
We also offer a return policy in accordance with Catawiki’s guidelines, so buyers can purchase with confidence. Our goal is to provide a trustworthy and pleasant buying experience with every gemstone.
Translated by Google Translate**ALGT Colored Stone Identification Report**
**Identification**
Species: Natural Topaz
Variety: Blue Topaz
**Description**
Shape & Cutting Style: Triangle, Mixed Cut
Measurements: 23.53 × 24.09 × 12.35 mm
Carat Weight: 47.32 Carat
Color: Vivid Blue
Transparency: Transparent
**Additional Grading Characteristics**
Trade Color Name: Swiss Blue
Color Quality Grade: Fine Color Quality
**Comments**
Blue topaz is commonly enhanced by irradiation and/or heating to improve its color. There is currently no scientific method available to determine whether this gemstone has been enhanced or not.
The photos were taken in a professional studio with extensive lighting to enhance the visibility of the color variations.
The images have not been edited in order to present the most realistic representation possible.
Color deviations may occur depending on the display settings of your computer, monitor, or smartphone.
Well packed and insured registered shipping.
Please feel free to take a look at my other listings and offers as well!
Seller's Story
At Terra Gems, we specialize in natural gemstones carefully selected for collectors, jewelry lovers and gemstone enthusiasts. We focus on offering genuine stones with clear descriptions, accurate photos and reliable information.
Customer satisfaction is very important to us. Every order is packed with care and shipped securely with tracking.
We also offer a return policy in accordance with Catawiki’s guidelines, so buyers can purchase with confidence. Our goal is to provide a trustworthy and pleasant buying experience with every gemstone.
Translated by Google TranslateDetails
Lab report number
94019194
Gemstone type
Topaz
Total carat weight
47.32
Gemstone colour
Blue
Transparency
Transparent
Treatment
Commonly irradiated with no evidence of treatment
Origin as given on certificate
No origin given
Laboratory report
Antwerp Laboratory for Gemstone Testing (ALGT)
Sealed by laboratory
No
Title additional information
Fine Color Quality
Shape
Triangle
Cutting style
Mixed cut
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