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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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
$ 448.98
10.97ct Gray Star Sapphire, Round, Opaque
12 mm (calibrated)
$ 506.82
13.46ct Gray Star Sapphire, Oval, Opaque
14 x 12 mm (calibrated)
$ 621.85
8.80ct Gray Star Sapphire, Round, Opaque
11 mm (calibrated)
$ 369.60
12.12ct Gray Star Sapphire, Oval, Opaque
12.3 x 11.4 mm
$ 559.94
7.06ct Gray Star Sapphire, Oval, Opaque
7.6 x 8.6 mm
$ 326.17
9.28ct Gray Star Sapphire, Round, Opaque
12 mm (calibrated)
$ 428.74
5.52ct Gray Star Sapphire, Oval, Opaque
9.5 x 8.5 mm
$ 255.02
8.96ct Gray Star Sapphire, Round, Opaque
10.5 mm
$ 376.32
7.88ct Gray Star Sapphire, Oval, Opaque
10.6 x 10.2 mm
$ 364.06
5.35ct Gray Star Sapphire, Oval, Opaque
9.5 x 9.1 mm
$ 224.70
14.39ct Gray Star Sapphire, Oval, Opaque
14 x 12 mm (calibrated)
$ 664.82
5.41ct Gray Star Sapphire, Oval, Translucent
9.5 x 8.3 mm
$ 189.35
6.61ct Gray Star Sapphire, Oval, Opaque
10 x 10 mm (calibrated)
$ 305.39
Why Buy Untreated Sapphire from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
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- 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 -> 8 
The website was easy to use and there were a lot of good options, I was satisfied.
Overall Rating -> 9 
Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly
Overall Rating -> 10 
They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.
Overall Rating -> 10
Good selection, using for custom jewlery for my wife.
Overall Rating -> 10
Great experience. I can't wait to explore on the website further.
Overall Rating -> 10
selection was broad and the check out was quick. Great site
