没有保留价 - 1 pcs 蓝色, 紫罗兰色 坦桑石 - 2.47 ct - 国际有色宝石协会（ICA GemLab）

ica gemlab
ethical · transparent · responsible

species: natural zoisite
variety: tanzanite
weight: 2.47 cts
dimensions: 10.86 x 7.67 x 4.93 mm
cut: modified brilliant / modified brilliant
shape: pear
transparency: transparent
phenomena: none

technology used in this report:
microscope
edxrf
raman
ftir
uv / vis / nir
la-icp-ms

date 2026-02-03
Pin 8051

color: bluish violet

treatments: see comments

comments:
tanzanite is commonly heated to improve or change the color. color authenticity is currently undeterminable.