1 pcs 绿色, 黄色金绿宝石 - 1.58 ct - 安特卫普宝石检测实验室（ALGT）

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Issue Date: 22 August, 2024 ALGT REPORT NUMBER: 37242939 IDENTIFICATION Species …………………………………………………… Natural Chrysoberyl Variety ……………………………………………………. Greenish Yellow Chrysoberyl DESCRIPTION Shape & Cutting Style …………………………………….. Pear, Mixed Cut Measurements …………………………………………….. 9.51 × 6.08 × 3.23 mm Carat Weight ……………………………………………… 1.58 Carat Color …………………………………………………………….. Intense/Vivid Greenish Yellow Transparency ……………………………………………… Transparent Additional Grading Characteristics Color Quality Grade …………………………………….. Fine Color Quality COMMENTS No indications of treatment. Main Properties Of Chrysoberyl Chemical Composition …………………………………… BeAl₂O₄ Crystal System ……………………………………………. Orthorhombic Mohs Hardness …………………………………………… 8.5 Specific Gravity ………………………………………….. 3.50 – 3.84 g/cm³ Optical Character ………………………………………… Uniaxial- Refractive Index ………………………………………….. 1.745 – 1.755 Birefringence ………………………………………………. 0.008 – 0.010

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1 pcs 绿色, 黄色金绿宝石 - 1.58 ct - 安特卫普宝石检测实验室（ALGT）

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Issue Date: 22 August, 2024
ALGT REPORT NUMBER: 37242939

IDENTIFICATION
Species …………………………………………………… Natural Chrysoberyl
Variety ……………………………………………………. Greenish Yellow Chrysoberyl

DESCRIPTION
Shape & Cutting Style …………………………………….. Pear, Mixed Cut
Measurements …………………………………………….. 9.51 × 6.08 × 3.23 mm
Carat Weight ……………………………………………… 1.58 Carat
Color …………………………………………………………….. Intense/Vivid Greenish Yellow
Transparency ……………………………………………… Transparent

Additional Grading Characteristics
Color Quality Grade …………………………………….. Fine Color Quality

COMMENTS
No indications of treatment.

Main Properties Of Chrysoberyl
Chemical Composition …………………………………… BeAl₂O₄
Crystal System ……………………………………………. Orthorhombic
Mohs Hardness …………………………………………… 8.5
Specific Gravity ………………………………………….. 3.50 – 3.84 g/cm³
Optical Character ………………………………………… Uniaxial-
Refractive Index ………………………………………….. 1.745 – 1.755
Birefringence ………………………………………………. 0.008 – 0.010