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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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2.67ct Red Almandine Garnet, Pear Shape, VVS

2.67ct Red Almandine Garnet, Pear Shape, VVS

12 x 8 mm (calibrated)

$ 99.72

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4.35ct Yellow Citrine, Oval, VVS-VS

4.35ct Yellow Citrine, Oval, VVS-VS

11.9 x 9.6 mm

$ 28.59

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13.82ct Green Malachite, Baguette, Opaque

13.82ct Green Malachite, Baguette, Opaque

13.3 x 10.1 mm

$ 16.05

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1.75ct Orange Zircon, Round, VVS

1.75ct Orange Zircon, Round, VVS

6.5 mm (calibrated)

$ 38.35

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0.27ct Orange Spessartite Garnet, Oval, VS-SI

0.27ct Orange Spessartite Garnet, Oval, VS-SI

4.1 x 3.1 mm

$ 9.41

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0.90ctw Violet Amethyst, Oval, VVS

0.90ctw Violet Amethyst, Oval, VVS

6 x 4 mm (calibrated)

$ 7.17

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12.92ctw Brown Smoky Quartz, Pear Shape, VVS

12.92ctw Brown Smoky Quartz, Pear Shape, VVS

15.1 x 11.1 mm

$ 42.47

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1.77ct Multicolor Labradorite, Round, Translucent

1.77ct Multicolor Labradorite, Round, Translucent

7 mm (calibrated)

$ 3.80

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2.15ct Turquoise Larimar, Pear Shape, Opaque

2.15ct Turquoise Larimar, Pear Shape, Opaque

12 x 8 mm (calibrated)

$ 25.32

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0.88ct Yellow Color-Change Diaspore, Emerald Cut, VVS-VS

0.88ct Yellow Color-Change Diaspore, Emerald Cut, VVS-VS

6.7 x 4.6 mm

$ 26.99

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1.85ct Yellow Citrine, Oval, VS

1.85ct Yellow Citrine, Oval, VS

9 x 7 mm (calibrated)

$ 14.19

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2.75ct Blue Chalcedony, Oval, Transparent

2.75ct Blue Chalcedony, Oval, Transparent

10 x 8 mm (calibrated)

$ 5.48

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4.57ctw Pink Malaya Garnet, Round, VS
Malaya Garnet Product Video (371613)

4.57ctw Pink Malaya Garnet, Round, VS

5.5 mm (calibrated)

$ 180.24

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40.12ct Multicolor Jasper, Oval, Opaque

40.12ct Multicolor Jasper, Oval, Opaque

32.7 x 23.5 mm

$ 40.88

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3.47ctw White Topaz, Square, VVS-VS

3.47ctw White Topaz, Square, VVS-VS

4 x 4 mm (calibrated)

$ 26.61

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0.87ct Green Tourmaline, Emerald Cut, VVS

0.87ct Green Tourmaline, Emerald Cut, VVS

10.9 x 3.4 mm

$ 21.66

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1.06ct Orange Zircon, Oval, VVS-VS

1.06ct Orange Zircon, Oval, VVS-VS

6.1 x 5 mm

$ 15.84

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5.91ct Yellow Citrine, Round, VVS

5.91ct Yellow Citrine, Round, VVS

12 mm (calibrated)

$ 45.33

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0.47ct Red Pyrope Garnet, Square, VVS-VS
Pyrope Garnet Product Video (505204)

0.47ct Red Pyrope Garnet, Square, VVS-VS

4 x 4 mm (calibrated)

$ 3.01

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5.07ct Pink Morganite, Oval, Transparent

5.07ct Pink Morganite, Oval, Transparent

13 x 9 mm (calibrated)

$ 55.54

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3.48ct Yellow Citrine, Oval, VVS-VS

3.48ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 22.87

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2.03ct Orange Hessonite Garnet, Round, VS-SI

2.03ct Orange Hessonite Garnet, Round, VS-SI

7 mm (calibrated)

$ 44.48

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1.19ct Pink Morganite, Round, VS

1.19ct Pink Morganite, Round, VS

7 mm (calibrated)

$ 91.27

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3.39ctw Yellow Citrine, Round, VVS-VS

3.39ctw Yellow Citrine, Round, VVS-VS

8 mm (calibrated)

$ 27.01

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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

I loved it! Extensive inventory, great prices, I definitely will be buying from here again!

Posted By Lex in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I've purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.

Posted By Maggie in August, 2025
Source: Bizrate

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
Source: Bizrate

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
Source: Bizrate

Overall Rating -> 10 star ratings

The website was very easy to use.

Posted By Garnet in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Good, hope gem quality is good and genuine

Posted By Varun in May, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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