Fără preț de rezervă Tanzanite - 45.56 ct - ALGT (Laboratorul pentru testarea pietrelor prețioase din Anvers)
1 pcs Albastru (violet) Tanzanite - 2.49 ct
Nr. 84098359
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style ................................................ Modified Octagon, Step Cut
Measurements .......................................................................... 7.97 x 7.11 x 4.91 mm
Carat Weight ...................................................................................................... 2.49 Carat
Color .............................................................................................................. Blue (Purplish)
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
27821331
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style ................................................ Modified Octagon, Step Cut
Measurements .......................................................................... 7.97 x 7.11 x 4.91 mm
Carat Weight ...................................................................................................... 2.49 Carat
Color .............................................................................................................. Blue (Purplish)
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
27821331
1
Piatră
Tanzanite
greutatea totală carate
2.49
Țară
Tanzania
Tăietură
Octogonal
Certificat
ALGT (B)
Culoare
Albastru (violet)
Tratament
Încălzit frecvent, fără dovadă de tratament
Claritate
Transparent
Nu
