Heat Only Sapphire Gemstones
Browse natural heat only sapphire gemstones, enhanced solely by traditional heat treatment for improved color and clarity.
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Bi-color
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Black Sapphire Heat-Only
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Blue Sapphire Heat-Only
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Brown
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Golden
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Gray Sapphire Heat-Only
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Green Sapphire Heat-Only
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Multicolor Sapphire Heat-Only
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Orange Sapphire Heat-Only
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Pink Sapphire Heat-Only
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Purple Sapphire Heat-Only
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Red Sapphire Heat-Only
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Turquoise Sapphire Heat-Only
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Violet Sapphire Heat-Only
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White Sapphire Heat-Only
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Yellow Sapphire Heat-Only
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Single |
Pairs |
Lots |
Faceted |
Cabochons |
1.80ct White Sapphire, Oval, VS
8.7 x 6.3 mm
$ 717.12
2.82ctw Blue Sapphire, Briolette, VS
5.6 x 3.7 mm
$ 151.41
0.33ct Pink Sapphire, Fancy, VS
6.7 x 3.9 mm
$ 32.87
0.50ct Green Sapphire, Trillion, VVS-VS
5 x 4.8 mm
$ 59.76
0.39ct Purple Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 36.79
1.25ctw White Sapphire, Round, VS
4.3 mm
$ 165.10
0.78ctw Pink Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 87.21
0.69ct Purple Sapphire, Fancy, VVS
9.2 x 5 mm
$ 75.60
1.14ctw Blue Sapphire, Round, VS
5 mm (calibrated)
$ 499.59
0.56ct Violet Sapphire, Oval, VS
5.4 x 4.4 mm
$ 73.62
0.61ct Pink Sapphire, Fancy, VS
7.6 x 4.8 mm
$ 67.97
0.56ct Purple Sapphire, Fancy, VVS-VS
6.3 x 5.2 mm
$ 55.78
5.35ct Green Sapphire, Oval, VVS
11.6 x 8.4 mm
$ 2,925.25
0.52ct Purple Sapphire, Fancy, VVS-VS
6.5 x 5.2 mm
$ 47.57
0.87ct Purple Sapphire, Fancy, VS
8.6 x 5.3 mm
$ 95.32
1.70ctw White Sapphire, Round, VS
4.5 mm (calibrated)
$ 224.23
0.58ct Pink Sapphire, Pear Shape, VS
8.1 x 3.9 mm
$ 173.30
0.73ct Blue Sapphire, Marquise, VVS-VS
8 x 3.9 mm
$ 143.96
1.56ctw White Sapphire, Round, VVS-VS
4.3 mm
$ 206.06
0.51ct Purple Sapphire, Oval, VVS-VS
6.4 x 4.8 mm
$ 56.87
0.46ctw Yellow Sapphire, Oval, VVS-VS
4.8 x 3 mm
$ 50.40
1.54ctw White Sapphire, Round, VS
4.3 mm
$ 203.42
1.60ctw Pink Sapphire, Trillion, VS
4 x 4 mm (calibrated)
$ 132.33
0.64ct Blue Sapphire, Marquise, VVS-VS
8 x 3.9 mm
$ 124.46
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Why Buy Sapphire Heat-Only 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
Heat Only Sapphire Stones
Our heat only sapphire stones are natural gemstones enhanced using traditional heat treatment only, without diffusion or chemical additives, preserving their authenticity and value.
What Does Heat Only Mean?
Heat only sapphires are gemstones that have undergone controlled heating to improve color and clarity. This is the most widely accepted treatment in the gem trade and does not involve foreign elements.
Natural Sapphire Colors
Heat only sapphires are available in a wide range of colors, including blue, pink, yellow, green, and parti-color varieties, offering versatility for all types of jewelry designs.
Heat Only vs Untreated Sapphire
While untreated sapphires are completely natural, heat only sapphires offer improved appearance at a more accessible price point, making them a popular choice for both collectors and jewelry makers.
Loose Sapphires for Custom Jewelry
Choose from a variety of shapes such as oval, round, cushion, and pear. Heat only sapphire gemstones are ideal for rings, earrings, and pendants thanks to their durability and brilliance.
No Diffusion or Filling
All our heat only sapphires are free from diffusion treatment, glass filling, or dyeing. Full disclosure ensures confidence and transparency with every purchase.
Certified Sapphire Gemstones
Many of our heat only sapphire gemstones come with gemological certification verifying treatment status, origin, and quality characteristics.
Wholesale Heat Only Sapphires
We offer competitive pricing for bulk purchases, making our heat only sapphires suitable for jewelers, designers, and gemstone dealers worldwide.
Learn more about sapphire treatments and properties on our Sapphire Information Page.
FAQs
What is a heat only sapphire?
A heat only sapphire is a natural gemstone that has been treated with heat alone to enhance its color and clarity, without any additional chemicals or diffusion processes.
Are heat only sapphires natural?
Yes, heat only sapphires are natural gemstones. Heat treatment is a standard and accepted process in the gemstone industry.
Is heat treatment permanent?
Yes, heat treatment is stable and permanent under normal wear, making it suitable for everyday jewelry.
What is the difference between heat only and diffusion sapphire?
Heat only sapphires are treated using heat alone, while diffusion sapphires involve the introduction of external elements to alter color, which is considered a more invasive treatment.
Are heat only sapphires valuable?
Yes, they are more valuable than heavily treated stones and offer a good balance between natural authenticity and improved appearance.
Can I use heat only sapphires for engagement rings?
Yes, sapphires are durable (Mohs 9) and suitable for engagement rings, especially when properly set and cared for.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.
Overall Rating -> 10
I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well
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
I can pick and choose from large selection and find just what I need for .y projects, currently my cane.
Overall Rating -> 10
My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.
Overall Rating -> 10
Very good place to buy gemstones
