FA-TISP024BY-001-002

Natural Gems Belgium Colored Stone Certification FA-TISP024BY-001-002

IDENTIFICATION : Natural orangy yellow shpene - 0.47 ct - round - unheated - sparkles A+

Species : Natural Titanite mineral
Variety : Yellow Sphene

DESCRIPTION

Shape & Cutting Style : Round Brilliant, Mixed cut
Measurements : 4.6 x 4.7 x 2.8 mm
Total Carat Weight : 0.47 carat
Color : orangy honey yellow  
Clarity : I2
Transparency : Transparent
Luster:  Adamantine  (difficult to polish)

Birefringence : 0.100-0.192.
Cleavage : Distinct 1 direction
Crystallography : Monoclinic
Dispersion : 0.051 (strong)
Hardness : 5- 5.5
Inclusions : feathers
Refractive index : 1.843-2.110
Specific gravity : 3.45-3.55

COMMENTS :

No indications of heating - No indications of treatment
Strong dispersion rate - A+ sparkles : sparkles in two colors minimum basically under direct light - adamantine luster

Personal Note From Natural Gems Belgium:

This 0.47 ct round brilliant cut gemstone sparkles in normal daylight and exhibits three shades of sparkle in direct light. Its cut grade is fair to good, symmetry is fair to good, and polish is good, given its level of difficulty. The luster is also good and adamantine.