FA-AMTR026PY-003-096
Natural purple and yellow Ametrine - 12.355 ct - AAA grade - octagon - certified natural
Natural Gems Belgium Colored Stone Certification FA-AMTR026PY-003-096
IDENTIFICATION
Species : Natural Quartz
Variety : Ametrine
DESCRIPTION
Shape & Cutting Style : Octagon, Step Cut
Measurements : 11.0 x 14.4 x 9.1 mm
Carat Weight : 12.355 Carat
Color : good balanced yellow and purple (clear straight division up and down)
Clarity : comparable to VVS
Transparency : Transparant
Birefringence : 0.009
Crystallography : hexagonal
Dispersion : 0.013
Luster : Vitreous
Hardness : 7
Refractive index : 1.544-1.553
Specific gravity : 2.651
COMMENTS :
No indications of heating, no indications of any other treatment
A combination of amethyst and citrine.
Good balanced and clear laser line divided yellow and purple color
Personal Note From Natural Gems Belgium:
A striking 12.355 ct Ametrine with balanced purple and yellow zones in an octagon cut. This AAA-grade certified natural stone boasts excellent symmetry, polish, and clarity with a brilliant luster. A captivating gemstone for discerning collectors.
Reference for AAA grading:
Color grade is good (purple very good - yellow good)
Cut grade is very good
Carat weight is excellent
Clarity is VVS ( very good)
Symmetry is very good
Luster is high and varies form golden to pinkish hues
