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 Sapphire Heat-Only
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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 |
0.49ct Yellow Sapphire, Oval, VVS-VS
5.5 x 4.6 mm
$ 29.53
1.37ctw White Sapphire, Round, VVS-VS
4.3 mm
$ 180.96
0.34ct Purple Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 32.06
0.41ct Purple Sapphire, Oval, VVS-VS
5 x 4 mm (calibrated)
$ 35.95
1.63ct Yellow Sapphire, Oval, VS-SI
8 x 6 mm (calibrated)
$ 68.67
4.12ct Green Sapphire, Oval, VVS
11 x 9 mm (calibrated)
$ 2,051.76
1.01ctw Blue Sapphire, Round, VS
5 mm (calibrated)
$ 442.62
0.77ctw White Sapphire, Round, VS
4.4 mm
$ 101.70
0.47ct Violet Sapphire, Pear Shape, VS
6.4 x 4.4 mm
$ 64.37
0.51ct Blue Sapphire, Round, Transparent
4.5 mm (calibrated)
$ 11.43
0.60ct Purple Sapphire, Emerald Cut, VS-SI
6 x 4 mm (calibrated)
$ 77.75
1.47ctw Multicolor Sapphire, Square, VS
2.3 x 2.3 mm
$ 175.69
0.30ct Pink Sapphire, Pear Shape, VS
5.8 x 3.8 mm
$ 28.29
0.75ctw White Sapphire, Round, VS
4.5 mm (calibrated)
$ 98.92
0.37ct Yellow Sapphire, Round, VS
4.5 mm (calibrated)
$ 21.37
0.44ct Purple Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 41.49
0.75ct Violet Sapphire, Oval, VS
7 x 5 mm (calibrated)
$ 73.50
0.80ct Blue Sapphire, Cushion, VS
5.5 x 4.5 mm
$ 95.62
0.46ct Violet Sapphire, Oval, VVS
6 x 4 mm (calibrated)
$ 35.07
0.56ctw Purple Sapphire, Oval, VS
5 x 3 mm (calibrated)
$ 48.80
0.48ct Blue Sapphire, Marquise, VVS-VS
7.1 x 3.4 mm
$ 43.87
2.68ctw Blue Sapphire, Briolette, VS
4.7 x 3.2 mm
$ 88.09
0.58ct Blue Sapphire, Round, VVS
5 mm (calibrated)
$ 390.71
1.25ctw Orange Sapphire, Oval, VVS-VS
6.4 x 4.5 mm
$ 120.08
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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 -> 9 
The purchasing process is fairly quick and straightforward and for me user friendly so it probably took more or less than 3 minutes to purchase and pay for the items. I wish there was a discount offer for multiple items to encourage us buyers to purchase more an incentive and add more sales in your end. Besides that, it's been a great purchasing experience and will continue to shop as I am a repeat customer and have bought from your store many times before. Thank you.
Overall Rating -> 10 
The stones are very nice.
Overall Rating -> 10
Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!
Overall Rating -> 10
I was looking for high-quality amethyst on this site, and I was able to compare size, color, and weight in detail before making a purchase.
Overall Rating -> 10
A pleasant experience and many choices to choose from
Overall Rating -> 10
Had a great experience and the prices are great
