Ingen mindstepris Tanzanit - 1.72 ct - Antwerp Laboratory for Gemstone Testing (ALGT)
1 pcs (Lys violetblå) Tanzanit - 2.87 ct
Nr. 84098339
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style ......................................................................... Oval, Mixed Cut
Measurements .......................................................................... 9.62 x 7.16 x 5.84 mm
Carat Weight ...................................................................................................... 2.87 Carat
Color ..................................................................................................... Light Violetish Blue
Transparency .................................................................................................. Transparent
ADDITIONAL GRADING CHARACTERISTICS
Suggested Origin ................................................................................................. Tanzania
COMMENTS
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.
22 March, 2024
10045286
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style ......................................................................... Oval, Mixed Cut
Measurements .......................................................................... 9.62 x 7.16 x 5.84 mm
Carat Weight ...................................................................................................... 2.87 Carat
Color ..................................................................................................... Light Violetish Blue
Transparency .................................................................................................. Transparent
ADDITIONAL GRADING CHARACTERISTICS
Suggested Origin ................................................................................................. Tanzania
COMMENTS
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.
22 March, 2024
10045286
Antal sten
1
Sten
Tanzanit
Samlet karatvægt
2,87
Oprindelse som angivet på certifikat
Tanzania
Slibning og form
Oval
Certificering
ALGT (B)
Farve
(Lys violetblå)
Behandling
Almindeligt varmebehandlet uden spor af behandling
Gennemsigtighed / klarhed
Gennemsigtig
Forseglet
Nej
