FA-NRUB024PR-014-010

Natural Gems Belgium Colored Stone Certification FA-NRUB024PR-014-010

IDENTIFICATION : Natural red Ruby - .53 ct - oval - heated - Africa 

Species : Natural Corundum
Variety :Ruby

DESCRIPTION

Shape & Cutting Style : Oval, Mixed Cut
Measurements : 5.0 x 4.0 x 2.8
Carat Weight : 0.53 Carat
Color : Red
Clarity : I2
Transparency : Transparant

Birefringence : 0.008-0.009 checked
Luster : Vitreous
Hardness : 9
Inclusions : mainly silk combined with rutile needles
Refractive index : 1.757-1.779 checked " is in margin"
Specific gravity : 3.99-4.1 checked 4.00
Dispersion : 0.018 checked

COMMENTS :

Indication heating with moderate residues, no indications of any other treatment

Small chipped not visible without magnification

Personal Note From Natural Gems Belgium:

This 0.53 ct oval-shaped ruby from Africa is heated and natural. It exhibits good symmetry, a good cut grade, and good polish and vitreous luster. No indications of glass or lead filling, and beautiful clear red shades can be seen in direct sunlight.