Natural light blue Topaz (baby-blue) 15.31 ct oval untreated - certified by NGB

Natural light blue Topaz (baby-blue)  15.31 ct oval untreated - certified by NGB

Experience the rarity of natural, unheated and untreated light blue topaz (baby-blue) with our 15.31 ct oval gemstone, certified by NGB. Enjoy its delicate, sky-like hue, as finding such a high-quality, untreated blue topaz is extremely rare. Elevate your jewelry collection with this stunning, certified gemstone.

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