Natural Blue Sapphire - 1.07 ct - pear - unheated - SI - Medium blue

Natural Blue Sapphire - 1.07 ct - pear - unheated - SI - Medium blue

Natural Gems Belgium Colored Stone Certification FA-SAPP026BL-003-122

IDENTIFICATION

Species : Natural Corundum
Variety : blue Sapphire

DESCRIPTION

Shape & Cutting Style : Pear, Mixed Cut
Measurements : 8.1 x 6.2 x 2.5 mm
Carat Weight : 1.07 Carat
Color : Blue (medium blue)
Clarity : SI 
Transparency : Transparent
Origin: Madagascar
Birefringence : 0.008-0.009
Crystallography : Hexagonal (trigonal)
Dispersion : 0.018
Luster : vitreous
Refractive index :1.757-1.779
Specific gravity : 3.99–4.10

COMMENTS

no indications of heating , no indications of other treatments

Personal Note From Natural Gems Belgium:

Cut: good
Symmetry : very good
Color : very good
Clarity: good
Polish: good

FIND THE ONLINE CERTIFICATE HERE