藍色黃玉 - 71.84 ct - 國際寶石學院（International Gemological Institute (IGI)） - 伦敦蓝拓帕石

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IGI Report #640406027 September 9, 2024 LER-LM (E) ================================================================== 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. ==================================================================

編號 98989290

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藍色黃玉 - 71.84 ct - 國際寶石學院（International Gemological Institute (IGI)） - 伦敦蓝拓帕石

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IGI Report #640406027
September 9, 2024
LER-LM (E)

==================================================================

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.

==================================================================