Senza Prezzo di Riserva - 2 pcs Tanzanite - 1.64 ct - Antwerp Laboratory for Gemstone Testing (ALGT)
1 pcs Blu (viola) Tanzanite - 2.25 ct
N. 84575377
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style .................................................................. Triangle, Mixed Cut
Measurements .......................................................................... 8.25 x 8.03 x 5.82 mm
Carat Weight ...................................................................................................... 2.25 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
57275055
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style .................................................................. Triangle, Mixed Cut
Measurements .......................................................................... 8.25 x 8.03 x 5.82 mm
Carat Weight ...................................................................................................... 2.25 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
57275055
Nr. di pietre
1
Pietre
Tanzanite
Peso totale in carati
2,25
Origine come indicata sul certificato gemmologico
Tanzania
Taglio e forma
Triangolo
Certificazione
ALGT (B)
Colore
Blu (viola)
Trattamento
Comunemente riscaldato senza evidenza di trattamento
Trasparenza/purezza
Trasparente
Sigillato
No
