FA-TOPAO26SB-003-101

Natural Swiss Blue Topaz - 0.589 ct - round - irradiated - high quality - certified natural.

Natural Gems Belgium Colored Stone Certification FA-TOPAO26SB-003-101

IDENTIFICATION

Species : Natural Topaz
Variety :  blue topaz

DESCRIPTION

Shape & Cutting Style : round , brilliant Cut
Measurements : 5.0 x 4.9 x 2.9 mm
Carat Weight : 0.589 carat
Color :  blue (swiss blue)
Clarity : comparable to VVS
Transparency : Transparent
Binefringence: 0.008-0.011
Crystallography : Orthorhombic
Hardness : 8
Luster : Vitreous
Refractive Index : 1.607-1.649 (1631=Brazil)
Specific Gravity : 3.50-3.57 ( 352-353)

COMMENTS

Color improved by irradiation
high luster - Very Good Color  - Excellent cut - very good clarity

Personal Note From Natural Gems Belgium:

high luster - good Color  - very good cut