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 Untreated Sapphire
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Brown Untreated Sapphire
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Golden
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Gray Untreated Sapphire
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Green
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Multicolor Untreated Sapphire
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Orange
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Pink Untreated Sapphire
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Purple Untreated Sapphire
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Red Untreated Sapphire
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Turquoise
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Violet Untreated Sapphire
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White
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Yellow Untreated Sapphire
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
1.47ct Orange Sapphire, Cushion, VS-SI
8.5 x 6.2 mm
$ 488.04
1.21ct Purple Sapphire, Cushion, VS
6.6 x 5.3 mm
$ 638.10
1.31ct Purple Sapphire, Cushion, VS
6.8 x 5.7 mm
$ 691.78
0.31ct Brown Color-Change Sapphire, Pear Shape, VVS
4.8 x 3.9 mm
$ 25.73
7.03ct Blue Sapphire, Round, VS
11.5 mm
$ 52,514.10
0.24ct Yellow Color-Change Sapphire, Baguette, VVS-VS
4.2 x 2.8 mm
$ 19.92
8.80ct Gray Star Sapphire, Round, Opaque
11 mm (calibrated)
$ 306.77
1.23ct Purple Sapphire, Pear Shape, VVS-VS
8.4 x 5.6 mm
$ 649.54
5.52ct Gray Star Sapphire, Oval, Opaque
9.5 x 8.5 mm
$ 211.67
0.16ct Gray Color-Change Sapphire, Square, VVS
2.9 x 3 mm
$ 13.28
1.03ct Purple Sapphire, Cushion, VS
7 x 5 mm (calibrated)
$ 543.18
8.96ct Gray Star Sapphire, Round, Opaque
10.5 mm
$ 312.35
1.47ct Purple Sapphire, Cushion, VS
7.1 x 5.6 mm
$ 776.27
0.91ct Purple Sapphire, Cushion, VS
6.3 x 4.2 mm
$ 480.55
1.10ct Purple Sapphire, Cushion, VS
7.3 x 5.1 mm
$ 580.09
1.07ct Purple Sapphire, Pear Shape, VS
7.5 x 5 mm
$ 565.04
1.26ct Purple Sapphire, Pear Shape, VS
7.1 x 5.7 mm
$ 664.47
1.22ct Purple Sapphire, Cushion, VS-SI
6.2 x 5.1 mm
$ 643.37
1.44ct Purple Sapphire, Cushion, VS
6 x 6 mm (calibrated)
$ 691.31
1.26ct Purple Sapphire, Cushion, VS
6.6 x 4.9 mm
$ 504.00
1.46ct Purple Sapphire, Round, VS
6.5 mm (calibrated)
$ 3,650.00
13.46ct Gray Star Sapphire, Oval, Opaque
14 x 12 mm (calibrated)
$ 516.14
1.16ct Purple Sapphire, Cushion, VS
6.5 x 4.8 mm
$ 612.57
1.46ct Violet Sapphire, Cushion, VS
7.3 x 5.4 mm
$ 699.95
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
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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 -> 9 
I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.
Overall Rating -> 10 
Love how easy the site is to use. Really love that the pictures are of actual product.
Overall Rating -> 10
I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.
Overall Rating -> 10
So far So good
Overall Rating -> 10
Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.
Overall Rating -> 8 
I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.
