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Untreated Gemstones

Browse our selection of untreated gemstones featuring natural color, clarity and beauty without enhancements.

Untreated Gemstones Weight
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3.26ctw Yellow Citrine, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 17.86

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3.47ctw Green Tsavorite Garnet, Pear Shape, VS

5 x 3 mm (calibrated)

$ 190.09

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34.18ct Green Maw-Sit-Sit, Baguette, Opaque

19.7 x 16.3 mm

$ 112.34

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6.43ct Violet Amethyst, Pear Shape, VVS-VS

16 x 12 mm (calibrated)

$ 48.89

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2.06ctw Red Pyrope Garnet, Marquise, VVS-VS

9.7 x 4.9 mm

$ 18.06

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5.73ctw Red Pyrope Garnet, Marquise, VVS-VS

12.1 x 6 mm

$ 56.68

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2.58ctw Yellow Citrine, Emerald Cut, VVS-VS

8 x 6 mm (calibrated)

$ 17.93

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2.41ct Green Peridot, Cushion, VS

8.6 x 7 mm

$ 95.51

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1.11ct Orange Sphalerite, Round, SI

6 mm (calibrated)

$ 55.28

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4.35ct Yellow Citrine, Fancy, VS

12.3 x 10.4 mm

$ 28.59

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1.77ct Orange Hessonite Garnet, Oval, VS

8.3 x 6.8 mm

$ 30.89

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13.81ct Multicolor Labradorite, Oval, Translucent

18 x 13 mm (calibrated)

$ 30.54

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7.81ct Pink Morganite, Oval, Translucent

14 x 10 mm (calibrated)

$ 85.56

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2.19ct Yellow Golden Beryl, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 59.99

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5.07ctw White Topaz, Cushion, VS-SI

4.6 x 4.6 mm

$ 27.78

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4.40ctw Multicolor Spectrolite, Oval, Opaque

10 x 8 mm (calibrated)

$ 20.12

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3.06ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 23.46

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0.48ct Orange Citrine, Marquise, VS

8 x 4 mm (calibrated)

$ 3.34

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30.82ct Violet Charoite, Oval, Opaque

35.4 x 18 mm

$ 57.73

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3.18ct Yellow Citrine, Oval, VS

11 x 9 mm (calibrated)

$ 20.91

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21.95ctw Multicolor Fossil Coral, Pear Shape, Opaque

20.4 x 13.3 mm

$ 48.10

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0.67ct Yellow Color-Change Diaspore, Cushion, VS

5.8 x 4.5 mm

$ 23.49

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1.04ct Purple Spinel, Cushion, VVS

6.5 x 4.9 mm

$ 74.77

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30.09ct Yellow Rutile Quartz, Round, Transparent

22.1 mm

$ 32.97

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Why Buy Untreated Gemstones from GemSelect?

Natural Untreated Gemstones

Our untreated gemstones are completely natural and have not undergone any enhancement processes. These gems display their original color and clarity as formed in nature, making them highly valued by collectors, jewelers, and gemstone enthusiasts.

Buy Untreated Gemstones Online

At GemSelect you can easily shop untreated gemstones online with confidence. Our inventory includes carefully sourced loose gemstones from around the world, with full transparency regarding treatments and gem origins.

Natural Untreated Loose Gemstones

Why Choose Untreated Gems?

Untreated gems are prized because they remain exactly as nature created them. Without heat or chemical treatments, these stones offer rarity and authenticity that many collectors and jewelry designers prefer.

Unheated Sapphire and Ruby

Some of the most sought-after untreated gemstones include unheated sapphire and ruby. These rare stones retain their natural color and are highly valued due to the absence of heat treatment commonly used to enhance corundum.

Gemstone Authenticity and Transparency

Every gemstone at GemSelect comes with clear treatment disclosure. When purchasing untreated stones, buyers can be confident they are receiving authentic gems that have not been altered by heat or other enhancement methods.

Untreated Gems for Custom Jewelry

Natural untreated gemstones are perfect for custom jewelry pieces. Their unique appearance ensures every ring, pendant, or pair of earrings features a one-of-a-kind gemstone created by nature.

Rare and Collectible Gemstones

Because many gemstones are routinely treated, truly untreated examples can be relatively rare. Collectors often seek untreated stones because they represent the most natural state of a gemstone.

Learn more about gemstone treatments and natural gem formation on our Gemstone Treatment Guide.

FAQs

What are untreated gemstones?

Untreated gemstones are natural gems that have not been enhanced with heat, chemicals, irradiation, or other treatments. They retain their original appearance as formed in nature.

Are untreated gemstones more valuable?

In many cases untreated gemstones are more valuable because they are rarer than treated stones. Natural color without enhancement is highly prized by collectors and investors.

How can I tell if a gemstone is untreated?

Gemstone treatment is typically determined through gemological testing. Reputable sellers like GemSelect clearly disclose whether a stone is untreated or has received any enhancements.

Which gemstones are commonly untreated?

Some gemstones frequently found untreated include garnet, spinel, peridot, and certain sapphires. However, many gem types may be treated depending on their origin and quality.

Are untreated gemstones suitable for jewelry?

Yes, untreated gemstones can be excellent for jewelry depending on their hardness and durability. Popular choices include sapphire, ruby, spinel, and garnet.

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

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 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

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

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

I feel Gemselect is a trustworthy company to buy from

Posted By Becky in October, 2025
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Overall Rating -> 8 star ratings

It was fine

Posted By Na in April, 2026
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Overall Rating -> 10 star ratings

Over pretty well experience the your website no complaints about it very easy reliable service provided

Posted By Blas in January, 2026
Source: Bizrate
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