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Home Gemstones Untreated Sapphire

Unheated Sapphire Gemstones - Natural Untreated Sapphires

Discover certified unheated sapphire gemstones with no heat treatment, prized for natural color, rarity, and long-term value.

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1.10ct Purple Sapphire, Cushion, VS

7.3 x 5.1 mm

$ 580.09

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2.34ct Violet Sapphire, Oval, VS-SI

9.5 x 7.8 mm

$ 936.00

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1.10ct Purple Sapphire, Pear Shape, VS

7.4 x 5.3 mm

$ 580.88

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0.16ct Gray Color-Change Sapphire, Square, VVS

2.9 x 3 mm

$ 13.28

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5.41ct Gray Star Sapphire, Oval, Translucent

9.5 x 8.3 mm

$ 157.16

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1.07ct Purple Sapphire, Cushion, VS

5.9 x 5.2 mm

$ 564.27

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1.10ct Purple Sapphire, Cushion, VS-SI

6 x 5.5 mm

$ 527.35

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Why Buy Untreated Sapphire from GemSelect?

Unheated Sapphire Gemstones

Our unheated sapphire gemstones are completely natural and have received no heat treatment, preserving their original color, clarity, and rarity.

Natural Untreated Sapphire Stones

Each untreated sapphire is carefully selected and independently certified, making these gemstones highly sought after by collectors and fine jewelers.

Unheated Sapphire Gemstones - Natural Untreated Sapphires

No Heat Sapphire for Fine Jewelry

No heat sapphires are ideal for high-end rings, engagement jewelry, earrings, and pendants where natural origin and long-term value matter most.

Blue and Fancy Color Unheated Sapphire

Choose from classic blue unheated sapphire gemstones or rare fancy colors including pink, yellow, green, and parti-color stones.

Certified Unheated Sapphire Stones

All unheated sapphires are clearly disclosed and may include gemological reports confirming the absence of heat treatment.

Loose Unheated Sapphire for Custom Designs

Buying loose unheated sapphire allows complete flexibility in setting style, size, and design for custom jewelry creations.

Investment-Grade Untreated Sapphire

Because untreated sapphires are increasingly rare, they are often considered strong long-term investments compared to heated stones.

Learn more about sapphire properties, treatments, and value on our Sapphire Information Page.

FAQs

What is an unheated sapphire?

An unheated sapphire is a natural sapphire that has not undergone heat treatment, meaning its color and clarity are entirely natural.

Is unheated sapphire the same as untreated sapphire?

In most cases, yes. Unheated sapphires are untreated by heat, though other treatments must always be disclosed if present.

Are unheated sapphires more valuable?

Yes, unheated sapphires are rarer than heated stones and often command higher prices, especially with strong natural color.

Do unheated sapphires come with certification?

Many unheated sapphires are accompanied by gemological reports confirming no heat treatment for buyer confidence.

Are unheated sapphires suitable for everyday wear?

Absolutely. Sapphire has a Mohs hardness of 9, making unheated sapphires durable and ideal for daily jewelry use.

GemSelect Certified Store Reviews

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I think therea's no problem

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overall great

Posted By SR in April, 2026
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Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
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I loved the selection of gemstones you have a to z

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