FA-OPCR025YE-002-342

Natural Yellow Opal of 6.739 ct in oval cabochon from ethiopia - untreated

Natural Gems Belgium Colored Stone Certification : FA-OPCR025YE-002-342

IDENTIFICATION

Species : Natural Opal
Variety : Yellow Opal

DESCRIPTION

Shape & Cutting Style : Oval cabochon, polished both sides
Measurements : 14.7 x 12.2 x 6.7 mm
Carat Weight : 6.739 Carat
Color : Orangey yellow 
Transparency : Transluscent
Origin: Ethiopia

Birefringence : none
Crystallography : Amorphous
Dispersion : Very low
Luster : Resinous
Hardness : 6-6.5
Refractive index : 1.37-1.47
Specific gravity : 1.95 - 2.00

COMMENTS :

Optical Effect : None

orange opals are often referred to as sun opals or Fire opals, due to their color, not because of play of color

no indications of heating, no indications of other treatments

Personal Note From Natural Gems Belgium:

Color : good
Polish : good to very good
Carat Weight : Fair
symmetry : fair
clarity : No opaliscence

As a supportive seller, we want to help you make an informed decision. It's important to note that this yellow opal has no play of color. The cabochon is polished good both sides and has fair symmetry