編號 100057185

1 pcs 藍色 藍寶石 - 4.99 ct - Gem research Swiss Lab (GRS) - 斯里兰卡“皇家蓝”
編號 100057185

1 pcs 藍色 藍寶石 - 4.99 ct - Gem research Swiss Lab (GRS) - 斯里兰卡“皇家蓝”
GRS Report #2025-091394
Date 28th November 2025
UMUE-MYZ (P)
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Object Description ..................... One faceted gemstone
Identification ................................... Natural Sapphire
Weight ................................................. 4.90 ct
Dimensions ....................................... 10.67 x 8.97 x 6.14 (mm)
Cut ......................................................... modified brilliant/step (5)
Shape ................................................... Oval
Color ..................................................... vivid blue (GRS-type "royal blue")
Origin .................................................... Sri Lanka
Comments: H LIBS-tested (see reverse side for details)
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