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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Bi-color
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Black
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Blue
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Brown
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Golden
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Gray Untreated Sapphire
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Green
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Multicolor
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Orange
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Pink
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Purple
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Red
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Turquoise
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Violet
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White
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Yellow
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
10.69ct Gray Star Sapphire, Oval, Opaque
11.7 x 11.1 mm
$ 372.65
5.35ct Gray Star Sapphire, Oval, Opaque
9.5 x 9.1 mm
$ 186.50
9.28ct Gray Star Sapphire, Round, Opaque
12 mm (calibrated)
$ 355.85
12.12ct Gray Star Sapphire, Oval, Opaque
12.3 x 11.4 mm
$ 464.75
8.80ct Gray Star Sapphire, Round, Opaque
11 mm (calibrated)
$ 306.77
5.52ct Gray Star Sapphire, Oval, Opaque
9.5 x 8.5 mm
$ 211.67
8.96ct Gray Star Sapphire, Round, Opaque
10.5 mm
$ 312.35
13.46ct Gray Star Sapphire, Oval, Opaque
14 x 12 mm (calibrated)
$ 516.14
5.41ct Gray Star Sapphire, Oval, Translucent
9.5 x 8.3 mm
$ 157.16
7.06ct Gray Star Sapphire, Oval, Opaque
7.6 x 8.6 mm
$ 270.72
10.97ct Gray Star Sapphire, Round, Opaque
12 mm (calibrated)
$ 420.66
14.39ct Gray Star Sapphire, Oval, Opaque
14 x 12 mm (calibrated)
$ 551.80
6.61ct Gray Star Sapphire, Oval, Opaque
10 x 10 mm (calibrated)
$ 253.47
7.88ct Gray Star Sapphire, Oval, Opaque
10.6 x 10.2 mm
$ 302.17
Why Buy Untreated Sapphire from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
- View All GemSelect Reviews on Bizrate
- Secure checkout and insured worldwide delivery
- 30-day returns and satisfaction guarantee
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.
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
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.
Overall Rating -> 8 
It was a good interaction I got a good gemstone for cheap
Overall Rating -> 10
GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!
Overall Rating -> 9 
It was fine . Wish there had been more round stones to select from
Overall Rating -> 10
Easy to use website
Overall Rating -> 10
overall great
