编号 98989290

蓝色 黄宝石 - 71.84 ct - 国际宝石研究院(IGI) - 伦敦蓝拓帕石
编号 98989290

蓝色 黄宝石 - 71.84 ct - 国际宝石研究院(IGI) - 伦敦蓝拓帕石
IGI Report #640406027
September 9, 2024
LER-LM (E)
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Species....................................................... Natural Topaz
Variety......................................................... Blue Topaz
Shape And Cutting Style................ Oval Mixed Cut
Weight ....................................................... 71.84 Carats
Measurements....................................... 32.55 X 20.91 X 12.24 Mm
Color And Transparency ............... Blue, Transparent
Characteristics .................................... Natural Inclusion(S) Pattern
Comments:
Blue Topaz Is Commonly Treated By Irradiation Followed
By Heat. Indicative Evidence Of Treatment Is Typically
Lacking.
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