FA-SPIN024PB-001-061

Natural Gems Belgium Colored Stone Certification FA-SPIN024PB-001-061

IDENTIFICATION : Natural Purplish blue spinel - 1.31 ct - Pear - unheated

Species : Natural Spinel

Variety : Blue Spinel

DESCRIPTION

Shape & Cutting Style : Pear, Mixed Cut
Measurements : 9.3 x 6.5 x 2.8 mm
Carat Weight : 1.31 Carat
Color : Purplish Blue
Clarity : I3
Transparency : Transparent
Luster : Vitreous

Crystallography : Isometric
Dispersion : 0.020
Hardness : 7.5-8
Refractive index: 1.715-1.747
Specific gravity :  3.55 to 3.90

COMMENTS :

No indication of heating, no indication of other treatment

chipped on down side, visible under magnification

Natural Gems Belgium classifies spinels as Type II clarity gemstones, which means they're usually included. Although the highest-valued spinels are usually eye-clean, most spinels contain inclusions visible only through magnification and some visible to the naked eye.

Personal Note From Natural Gems Belgium:

This Purplish blue Spinel gemstone has a Good cut grade with Good symmetry and polish, and a good vitreous luster. 
A chip is present on the downside of the Gemstone, visible under magnification. Influencing the value for this stone, because under magnification the chip is influencing the clarity of the stone on the surface