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 |
0.43ct Purple Sapphire, Oval, VVS-VS
5 x 4 mm (calibrated)
$ 43.41
0.61ct Purple Sapphire, Fancy, VVS-VS
6.9 x 5.4 mm
$ 60.76
0.54ct Purple Sapphire, Oval, VVS-VS
6 x 4 mm (calibrated)
$ 71.00
0.43ct Pink Sapphire, Oval, VS-SI
4.8 x 4 mm
$ 37.70
0.38ct Orange Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 34.76
0.48ct Pink Sapphire, Oval, VVS-VS
5 x 4 mm (calibrated)
$ 47.81
3.80ctw Yellow Sapphire, Briolette, VVS-VS
6.2 x 4.3 mm
$ 217.17
1.71ctw White Sapphire, Round, VS
4.5 mm (calibrated)
$ 225.55
0.94ctw White Sapphire, Round, VVS-VS
4.5 mm (calibrated)
$ 123.99
0.44ct Blue Sapphire, Cushion, VS
4 x 4 mm (calibrated)
$ 52.59
2.50ctw Multicolor Sapphire, Oval, VS
6 x 4.3 mm
$ 267.61
0.53ct Purple Sapphire, Oval, VS
5.5 x 4.4 mm
$ 69.68
0.47ct Purple Sapphire, Oval, VS
5 x 4 mm (calibrated)
$ 77.24
2.10ct Blue Sapphire, Oval, VS
7.3 x 6.3 mm
$ 1,254.96
0.73ctw Pink Sapphire, Oval, VS
6 x 4 mm (calibrated)
$ 73.94
0.31ct Pink Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 30.88
5.81ct Black Star Sapphire, Oval, Opaque
10.4 x 8.2 mm
$ 104.17
0.70ct Pink Sapphire, Oval, VVS-VS
6.1 x 5.1 mm
$ 230.08
0.62ct Blue Sapphire, Round, VS
5 mm (calibrated)
$ 369.07
0.81ct Blue Sapphire, Cushion, VS
5.5 x 4.4 mm
$ 64.54
0.76ctw Purple Sapphire, Oval, VS
5 x 4 mm (calibrated)
$ 72.77
0.41ct Purple Sapphire, Oval, VVS-VS
5 x 4 mm (calibrated)
$ 35.95
0.44ct Green Sapphire, Trillion, VS
4.7 x 4.5 mm
$ 35.06
0.60ct Pink Sapphire, Oval, VS
6.8 x 4.8 mm
$ 66.91
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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 -> 8 
It was fine
Overall Rating -> 10 
Very good
Overall Rating -> 8
I visited several online loose stone shops trying to find rare stones. I finally found one that I've been looking for here, and very satisfied. Looking forward to receive the item in 3 weeks.
Overall Rating -> 10
Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10
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
My current project is something BLUE . Opal earrings with matching tennis bracelet for her wedding. The opals and sixty two sapphires VVS & VS are AMAZINGLY BEAUTIFUL. The private jewelers were impressed by the clarity and inclusion free of the sapphires . I want to say thank you for the High quality sapphires that I purchased for my daughtera's wedding.
