11 pcs Blue, Purple Tanzanite - 5.02 ct - Antwerp Laboratory for Gemstone Testing (ALGT)
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This lot comprises 11 transparent Tanzanite stones, totalling 5.02 carats, in oval mixed cuts and purplish-blue to bluish-purple hues.
AI-assisted summary
Description from the seller
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style ......................................................................... Oval, Mixed Cut
Total Carat Weight .......................................................................................... 5.02 Carat
Color ............................................................................... Purplish Blue to Bluish Purple
Transparency .................................................................................................. Transparent
ADDITIONAL GRADING CHARACTERISTICS
Origin ......................................................................................................................... Tanzania
Origin determination is an expert opinion based on microscopic examination, spectroscopic features and
chemical trace element analysis.
COMMENTS
Total 11 stones. Average carat weight: 0.45 ct.
Tanzanite is commonly heated at low temperature to improve its color.
There is currently no scientific method available to determine whether this
gemstone has been enhanced or not.
12 March, 2026
08689701
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style ......................................................................... Oval, Mixed Cut
Total Carat Weight .......................................................................................... 5.02 Carat
Color ............................................................................... Purplish Blue to Bluish Purple
Transparency .................................................................................................. Transparent
ADDITIONAL GRADING CHARACTERISTICS
Origin ......................................................................................................................... Tanzania
Origin determination is an expert opinion based on microscopic examination, spectroscopic features and
chemical trace element analysis.
COMMENTS
Total 11 stones. Average carat weight: 0.45 ct.
Tanzanite is commonly heated at low temperature to improve its color.
There is currently no scientific method available to determine whether this
gemstone has been enhanced or not.
12 March, 2026
08689701
Details
Number of stones
11
Lab report number
08689701
Gemstone type
Tanzanite
Total carat weight
5.02
Gemstone colour
Blue, Purple
Transparency
Transparent
Treatment
Commonly heated with no evidence of treatment
Laboratory report
Antwerp Laboratory for Gemstone Testing (ALGT)
Sealed by laboratory
No
Shape
Oval
Cutting style
Mixed cut
Sold by
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Rechtliche Informationen des Verkäufers
- Unternehmen:
- Amour GD Schmuck e. K.
- Repräsentant:
- Renuka Devi Kandaswamy
- Adresse:
- Aichacher Str 16
86577 Sielenbach
GERMANY - Telefonnummer:
- +491727840521
- Email:
- amourgdschmuck@gmail.com
- USt-IdNr.:
- DE360591812
AGB
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Widerrufsbelehrung
- Frist: 14 Tage sowie gemäß den hier angegebenen Bedingungen
- Rücksendkosten: Käufer trägt die unmittelbaren Kosten der Rücksendung der Ware
- Vollständige Widerrufsbelehrung
