藍色黃玉 - 69.76 ct - 國際有色寶石協會 (ICA GemLab) - 伦敦蓝拓帕斯

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27 December 2024 REPORT# 176007 PIN:4A5C LBE-LM (E) ======================================================================== Species ........................................................... Natural Topaz Variety ............................................................. Blue Topaz Weight ............................................................. 69.76 Carats Measurements ............................................ 28.87 x 21.87 x 15.55 Mm Shape .............................................................. Step / Modified Step Cutting Style ............................................... Fancy Transparency .............................................. Transparent Phenomena ................................................. None Color ................................................................ Blue Treatments .................................................... See Comments Comments Topaz is commonly heated or irradiated to improve or change the color. Color authenticity is currently undeterminable. Known in the trade as "London blue topaz" ======================================================================

編號 99476650

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藍色黃玉 - 69.76 ct - 國際有色寶石協會 (ICA GemLab) - 伦敦蓝拓帕斯

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27 December 2024
REPORT# 176007
PIN:4A5C
LBE-LM (E)

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

Species ........................................................... Natural Topaz
Variety ............................................................. Blue Topaz
Weight ............................................................. 69.76 Carats
Measurements ............................................ 28.87 x 21.87 x 15.55 Mm
Shape .............................................................. Step / Modified Step
Cutting Style ............................................... Fancy
Transparency .............................................. Transparent
Phenomena ................................................. None
Color ................................................................ Blue
Treatments .................................................... See Comments

Comments
Topaz is commonly heated or irradiated to improve or
change the color.
Color authenticity is currently undeterminable.
Known in the trade as "London blue topaz"

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