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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

Size Explained

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For Example: 8-9
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Black Sapphire Heat-Only
Blue 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
Yellow Sapphire Heat-Only
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0.58ct Multicolor Sapphire, Cushion, VS

5.2 x 4.2 mm

$ 46.21

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0.57ct Blue Sapphire, Marquise, VVS

8 x 4 mm (calibrated)

$ 133.02

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0.62ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 369.07

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0.80ct Multicolor Sapphire, Cushion, VVS-VS

6.1 x 4.4 mm

$ 127.49

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0.69ct Blue Sapphire, Cushion, VVS-VS

5.6 x 4.7 mm

$ 82.47

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1.39ctw White Sapphire, Round, VS

4.2 mm

$ 153.00

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0.57ct Pink Sapphire, Oval, VS

6 x 4 mm (calibrated)

$ 56.77

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0.30ct Purple Sapphire, Oval, VS

6 x 4 mm (calibrated)

$ 29.88

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0.58ct Blue Sapphire, Round, VVS

5 mm (calibrated)

$ 345.26

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0.55ct Blue Sapphire, Cushion, VS

5.5 x 4.4 mm

$ 65.74

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0.58ct Green Sapphire, Cushion, VS-SI

5 x 5 mm (calibrated)

$ 46.21

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0.76ctw White Sapphire, Round, VVS-VS

4.5 mm (calibrated)

$ 100.25

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0.97ctw Purple Sapphire, Oval, VS

6 x 4 mm (calibrated)

$ 91.48

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0.56ct Blue Sapphire, Round, VVS-VS

5 mm (calibrated)

$ 377.24

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1.69ctw Blue Sapphire, Square, VVS-VS

2.4 x 2.4 mm

$ 111.10

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0.73ct Purple Sapphire, Oval, VS

6.3 x 4.3 mm

$ 239.94

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0.81ct Green Sapphire, Cushion, VVS

5 x 5 mm (calibrated)

$ 64.54

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0.33ct Yellow Sapphire, Oval, VS

5.7 x 4 mm

$ 36.15

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0.40ct Violet Sapphire, Oval, VS

5.7 x 3.5 mm

$ 39.85

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1.14ctw Blue Sapphire, Round, VS

5 mm (calibrated)

$ 499.59

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0.44ct Purple Sapphire, Oval, VS

6 x 4 mm (calibrated)

$ 43.82

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1.60ctw White Sapphire, Round, VVS-VS

4.3 mm

$ 211.34

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0.45ct Yellow Sapphire, Round, SI

4.5 mm (calibrated)

$ 22.41

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0.65ct Green Sapphire, Cushion, VVS-VS

4.6 x 4.5 mm

$ 51.79

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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 -> 9 star ratings

Very good and simple exchange

Posted By Waylon in March, 2026
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Overall Rating -> 10 star ratings

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.

Posted By My real name Dean or Wandering about in May, 2026
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Overall Rating -> 10 star ratings

Everything was great, website user friendly, quality amazing, communication amazing, delivery amazing, everything was as expected, they done what they said they would, overall experience was amazing.

Posted By Jac in July, 2025
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Overall Rating -> 10 star ratings

The website has a good selection, the interface is very intuitive.

Posted By PhoenixFeatherJewelry in January, 2026
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Overall Rating -> 10 star ratings

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!

Posted By Britnee Rose in September, 2025
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Overall Rating -> 10 star ratings

Enjoy every moment

Posted By Ferns in October, 2025
Source: Bizrate
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