Back to gem encyclopedia

Ametrine

This transparent quartz has colours of both amethyst and citrine, and is called ametrine or amethyst-citrine.

Responsive image
Golden Yellow

Golden shades of citrine glow in the heart of this gem.

Responsive image
Lovely Purple

Shades of amethyst’s purple contrast with citrine’s orangey yellow.

Responsive image
Blended shades

Reflections from the back facets blend into sunset colours in this rectangular cut.

Responsive image
Responsive image
Bicolour

This quartz crystal shows both amethyst and citrine colours.

Responsive image
Top Quality

This facet grade rough piece will produce a superb cut gem.

Responsive image
Rare

With only one producing source, the supply of ametrine is very limited.

Responsive image
Tools

Buyer's Guide

Ametrine is a bicolour gem that’s highly prized when it displays an attractive balance between its most desirable amethyst and citrine shades.

FIND A JEWELLER

Use your postcode to find a jeweller near you with GIA reports and GIA-trained staff.

FIND A REPORT

Verify the information on your report matches what is archived in the GIA report database.

What to look for

Colour

The striking bicolour nature of ametrine is its most important feature.

Ametrine Clarity

Most gem-quality ametrines do not have eye-visible inclusions.

Cut

Cutting styles that emphasise ametrine’s unique colour combination are popular with consumers.

Carat Weight

Ametrine is available in a wide range of sizes. Generally, larger gems have the most intense colours.

Ametrine Quality Factors: The Comprehensive Guide