Among the most fascinating gemstones in the world are parti sapphires — natural stones that display two or more colours at once. Uniquely associated with Australia, no two are ever exactly alike. Here is what makes them so special.
What is a parti sapphire?
A parti sapphire (sometimes called a "parti-coloured" or "bi-colour" sapphire) is a single natural sapphire that shows distinct zones of different colours — most often blue, green and golden-yellow — within one stone. The colours occur entirely naturally as the crystal forms, and they are not enhanced or treated to appear that way.
Why are they uniquely Australian?
While parti sapphires can occur elsewhere, Australia's sapphire gemfields in Queensland and New South Wales are the world's most famous source. That makes a parti sapphire a wonderful way to own a genuinely Australian natural gem. Explore our Australian sapphires to see the range of colours on offer.
Why collectors and designers love them
- Every stone is one of a kind: the colour zoning means no two parti sapphires are identical.
- Naturally untreated: their beauty comes straight from nature, with no colour enhancement needed.
- Versatile and modern: the blend of tones suits contemporary and individual jewellery designs beautifully.
- Excellent value: parti sapphires often offer remarkable character for the price.
Are parti sapphires durable?
Absolutely. Like all sapphires, they rate 9 on the Mohs hardness scale, making them perfect for everyday jewellery including rings. Every stone we offer is examined in-house by our FGAA-qualified gemmologist, so you can be confident in its natural, untreated character.
Common questions
What is the difference between a parti sapphire and a teal sapphire?
A teal sapphire is a single blended blue-green colour throughout the stone. A parti sapphire holds two or more distinct colours — commonly blue, green and gold — kept visibly apart in zones or bands rather than merged. Parti stones are one-of-a-kind; no two share the same colour pattern.
What does parti sapphire mean?
Parti comes from "particoloured", meaning patterned in more than one colour. In a parti sapphire, different colours are locked into different growth layers of the crystal as it formed, so they appear side by side in the finished stone rather than blended into one hue.
Where do parti sapphires come from?
Parti sapphires are famously Australian, drawn from the eastern basalt belt — Inverell and Glen Innes in New South Wales, and Anakie and Rubyvale in Queensland. This volcanic geology naturally favours the blue, green and gold tones that define parti and teal sapphires.
Are parti sapphires heated or unheated?
Both exist. Most sapphires are heated, a permanent, centuries-old and trade-accepted treatment that must always be disclosed. Unheated parti sapphires are exactly as the earth made them and command a premium of roughly 50 to 300 per cent (as of August 2026), confirmed by an independent report reading "no indications of heating".
This article is part of our Sapphire Guide series — continue with the Sapphire Colour Guide, Origin Guide, Treatments & Heating Guide and Sapphire Price Guide.
Sources and further reading
- Sapphire Description — GIA Gem Encyclopedia — Gemological Institute of America
- Sapphire Quality Factors — GIA — Gemological Institute of America
- Minerals — Australian geology and mineral resources — Geoscience Australia
These are independent gemmological authorities, cited so our statements can be checked against them. Ministry of Gems® is not affiliated with these organisations. Checked August 2026.