This is a stunning GIA Certified Ametrine
The GIA report reads as follows:
GIA Report Number: 2223290610
Shape: Octagonal
Cutting Style: Step Cut
Cutting Style: Crown:
Cutting Style: Pavilion:
Transparency: Transparent
Color: Zoned Purple and Yellow
RESULTS
Species: Natural Quartz
Variety: Amethyst-Citrine
Geographic Origin:
Treatment:
Item Description: One loose stone
Weight: 36.53 carats
Measurements: 19.83 x 18.08 x 12.12 mm
Comments: Sometimes known in the trade as "Ametrine".
Internal notes and additional description:
Weight: 36.53 carats
Clarity: Very Very Slightly Included: Eye Clean, no inclusions visible to the naked/unaided eye, near loupe clean, very minor inclusions visible under 10x magnification.
Colour: Zoned Purple and Yellow
Hue: Purple And Yellow
Tone: 4-5 Medium Light-Medium
Saturation: 4 Moderately Strong
Treatment: None
Origin: Bolivia
Internal SKU: GIAAT0004
Please quote SKU if you have any questions about this gem.