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Home Gemstones Sapphire Heat-Only

Heat Only Sapphire Gemstones

Browse natural heat only sapphire gemstones, enhanced solely by traditional heat treatment for improved color and clarity.

Sapphire Heat-Only Weight
Sapphire Heat-Only Size
Sapphire Heat-Only Clarity
Sapphire Heat-Only Price
Sapphire Heat-Only Treatment

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Black Sapphire Heat-Only
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Gray Sapphire Heat-Only
Green Sapphire Heat-Only
Multicolor Sapphire Heat-Only
Orange Sapphire Heat-Only
Pink Sapphire Heat-Only
Purple Sapphire Heat-Only
Red Sapphire Heat-Only
Turquoise Sapphire Heat-Only
Violet Sapphire Heat-Only
White Sapphire Heat-Only
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1.43ct Yellow Sapphire, Cushion, VS

6.7 x 5.3 mm

$ 268.64

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0.59ctw White Sapphire, Oval, VVS-VS

5 x 3 mm (calibrated)

$ 64.64

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0.54ct Multicolor Sapphire, Cushion, VVS-VS

4.2 x 4.2 mm

$ 43.03

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0.72ct Yellow Sapphire, Heart, VVS-VS

5.5 x 5.5 mm

$ 39.44

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0.85ct Green Sapphire, Pear Shape, VVS-VS

7 x 5 mm (calibrated)

$ 67.73

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2.04ctw Gray Sapphire, Briolette, VS

4.5 x 2.9 mm

$ 55.88

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0.86ctw Multicolor Sapphire, Square, VS

2.2 x 2.2 mm

$ 102.79

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0.51ct Purple Sapphire, Fancy, VVS-VS

6.6 x 4.8 mm

$ 51.14

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7.12ct Black Star Sapphire, Oval, Opaque

11.2 x 9.8 mm

$ 141.83

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4.63ct Black Star Sapphire, Oval, Opaque

10.2 x 8.5 mm

$ 83.01

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0.09ct Pink Sapphire, Round, Transparent

2.5 mm (calibrated)

$ 1.74

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0.42ct Pink Sapphire, Oval, VS

5.5 x 4.5 mm

$ 46.02

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0.41ct Pink Sapphire, Oval, VVS

6 x 4 mm (calibrated)

$ 40.84

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2.19ctw Blue Sapphire, Briolette, VS

4.5 x 2.9 mm

$ 134.71

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0.72ct Purple Sapphire, Fancy, VS

6.3 x 5.6 mm

$ 78.88

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3.52ct Multicolor Sapphire, Oval, VS

10.5 x 7.6 mm

$ 876.48

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0.61ct Pink Sapphire, Oval, VS

6 x 4.9 mm

$ 200.49

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0.49ct White Sapphire, Round, VS

4.5 mm (calibrated)

$ 58.76

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0.45ct Purple Sapphire, Oval, VS

5 x 4 mm (calibrated)

$ 34.07

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0.72ctw White Sapphire, Round, VS

4.3 mm

$ 79.14

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3.13ctw Blue Sapphire, Square, VVS-VS

2.7 x 2.6 mm

$ 171.46

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0.60ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 404.19

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0.76ct Green Sapphire, Pear Shape, VS

7 x 5 mm (calibrated)

$ 60.56

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0.76ctw White Sapphire, Round, VS

4.5 mm (calibrated)

$ 100.25

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Why Buy Sapphire Heat-Only from GemSelect?

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.

Loose Heat Only Sapphire Gemstones for Jewelry

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 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

The stones are very nice.

Posted By Mvk in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

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.

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Found a rock that met my need. Bought it!

Posted By Skot in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection. Maybe too great i kept adding and deleting stuff because i found better looking ones

Posted By Edsor works in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate
Enlarged Gemstone Image