Blå tanzanit, rund, 1.00 ct

ALGT COLORED STONE IDENTIFICATION REPORT
IDENTIFICATION
Species ......................................................................................................... Natural Zoisite
Variety ..................................................................................................................... Tanzanite
DESCRIPTION
Shape & Cutting Style .................................................... Round Brilliant, Mixed Cut
Measurements ........................................................................... 6.12 - 6.17 x 3.92 mm
Carat Weight ...................................................................................................... 1.00 Carat
Color ................................................................................................................ 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.