No Reserve Price - 2 pcs Tanzanite - 1.64 ct - Antwerp Laboratory for Gemstone Testing (ALGT)
1 pcs Deep Violetish Blue Tanzanite - 2.32 ct
No. 84381167
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style ......................................................................... Oval, Mixed Cut
Measurements ....................................................................... 10.25 x 7.07 x 3.72 mm
Carat Weight ...................................................................................................... 2.32 Carat
Color .................................................................................................... Deep 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
77578773
ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style ......................................................................... Oval, Mixed Cut
Measurements ....................................................................... 10.25 x 7.07 x 3.72 mm
Carat Weight ...................................................................................................... 2.32 Carat
Color .................................................................................................... Deep 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
77578773
Nr of stones
1
Stone
Tanzanite
Total carat weight
2.32
Origin as given on certificate
Tanzania
Cut & Shape
Oval
Laboratory Report
ALGT (B)
Colour
Deep Violetish Blue
Treatment
Commonly heated with no evidence of treatment
Transparency/ clarity
Transparent
Sealed
No
