FA-CROP024WH-002-009

Natural Gems Belgium Colored Stone Certification : FA-CROP024WH-002-009

IDENTIFICATION : Natural White Crystal Opal - amazing play of color - 1.815 ct - oval - unheated

Species : Natural Opal
Variety : White Crystal Opal

DESCRIPTION

Shape & Cutting Style : Oval , mixed cut
Measurements : 10.8 x 8.2 x 4.3 mm
Carat Weight : 1.815 Carat
Color : White with rainbow play of color opaliscence
Transparency : Transparent
Origin: Ethiopia

Birefringence : none
Crystallography : Amorphous
Dispersion : Very low
Luster : Iridescent
Hardness : 6-6.5
Refractive index : 1.37-1.47
Specific gravity : 2.10

COMMENTS :

Optical Effect : Opaliscence ( White-Red-Orange-Green-Yellow-Violet-Blue )

no indications of heating, no indications of other treatments

Personal Note From Natural Gems Belgium:

• cut grade : good
• color : amazing play of color very vivid even under normal sunlight
• symmetry : good
• polish : good
• carat weight : fair