Natural light blue Topaz - 15.31 ct -oval - untreated
This Natural light blue Topaz is truly unique, with a beautiful blue color that will catch your eye. Certified natural, this untreated oval gemstone weighs an impressive 15.31 ct and has stunning SI clarity and luster. You can trust in its exceptional quality when you make this purchase.
Natural Gems Belgium Colored Stone Certification FA-TOPAO24LB-001-107
IDENTIFICATION
Species : Natural Topaz
Variety : blue topaz
DESCRIPTION
Shape & Cutting Style : Oval , Mixed Cut
Measurements : 14.8 x 12.7 x 10.4 mm
Carat Weight : 15.31 carat
Color : light blue
Clarity : comparable to SI2
Transparency : Transparent
origin : Brazil
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
No indication of heating no indication of other treatment
(this blue topaz is not irradiated what is extremely rare for blue topaz gemstones)
Personal Note From Natural Gems Belgium:
This blue topas has good cut grade, good polish, fair color, and good symmetry, ct weight is good to very good, the clarity is good
FIND THE ONLINE CERTIFICATE HERE
for general impression take a look at the pictures.
All items are sent insured with track and trace regardless of value
