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Home › Gemstones › Untreated Gemstones

Untreated Gemstones

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

Untreated Gemstones Weight
Untreated Gemstones Size
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Untreated Gemstones Treatment

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Yellow Untreated Gemstones
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3.85ct Yellow Citrine, Emerald Cut, VVS

3.85ct Yellow Citrine, Emerald Cut, VVS

11 x 9 mm (calibrated)

$ 29.53

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6.01ct Multicolor Labradorite, Pear Shape, Translucent

6.01ct Multicolor Labradorite, Pear Shape, Translucent

15.8 x 9.9 mm

$ 13.29

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12.01ct Yellow Jadeite, Oval, Translucent

12.01ct Yellow Jadeite, Oval, Translucent

18 x 13 mm (calibrated)

$ 39.47

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0.44ct Yellow Citrine, Oval, VVS-VS

0.44ct Yellow Citrine, Oval, VVS-VS

6 x 4 mm (calibrated)

$ 3.07

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0.85ct Brown Sillimanite Cat'S Eye, Oval, Translucent

0.85ct Brown Sillimanite Cat'S Eye, Oval, Translucent

6.4 x 4.6 mm

$ 2.54

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0.59ct Green Cat'S Eye Alexandrite, Oval, Opaque

0.59ct Green Cat'S Eye Alexandrite, Oval, Opaque

5.2 x 3.6 mm

$ 97.94

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1.49ct Yellow Citrine, Emerald Cut, VVS-VS

1.49ct Yellow Citrine, Emerald Cut, VVS-VS

8 x 6 mm (calibrated)

$ 11.87

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1.94ct Green Sphene, Oval, Transparent

1.94ct Green Sphene, Oval, Transparent

8.5 x 6.8 mm

$ 9.66

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13.70ct Multicolor Pietersite, Pear Shape, Opaque

13.70ct Multicolor Pietersite, Pear Shape, Opaque

27.1 x 15.3 mm

$ 60.04

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1.14ct Yellow Beryl, Oval, VVS-VS

1.14ct Yellow Beryl, Oval, VVS-VS

8.2 x 6.3 mm

$ 24.98

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0.79ct Yellow Citrine, Square, VS

0.79ct Yellow Citrine, Square, VS

5.7 x 5.7 mm

$ 5.19

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6.97ct Gray Quartz Cat'S Eye, Oval, Opaque

6.97ct Gray Quartz Cat'S Eye, Oval, Opaque

12.7 x 9.8 mm

$ 22.91

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1.64ctw Multicolor Andalusite, Oval, VS

1.64ctw Multicolor Andalusite, Oval, VS

5 x 3.1 mm

$ 87.61

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2.24ctw Violet Amethyst, Emerald Cut, Transparent

2.24ctw Violet Amethyst, Emerald Cut, Transparent

7 x 5 mm (calibrated)

$ 13.39

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38.05ct Multicolor Jasper, Fancy, Opaque

38.05ct Multicolor Jasper, Fancy, Opaque

40.6 x 11.4 mm

$ 11.37

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5.81ctw Yellow Citrine, Oval, VS

5.81ctw Yellow Citrine, Oval, VS

11 x 9 mm (calibrated)

$ 31.83

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4.22ct Yellow Citrine, Oval, VVS-VS

4.22ct Yellow Citrine, Oval, VVS-VS

12 x 10 mm (calibrated)

$ 32.36

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2.35ct Yellow Beryl, Round, VVS

2.35ct Yellow Beryl, Round, VVS

9 mm (calibrated)

$ 51.49

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1.09ct Green Peridot, Emerald Cut, VS

1.09ct Green Peridot, Emerald Cut, VS

7 x 5 mm (calibrated)

$ 17.37

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33.19ct Gray Hematite, Round, Opaque

33.19ct Gray Hematite, Round, Opaque

22.4 mm

$ 36.36

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2.76ctw Red Pyrope Garnet, Square, VS

2.76ctw Red Pyrope Garnet, Square, VS

5 x 5 mm (calibrated)

$ 21.17

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2.33ctw Red Pyrope Garnet, Marquise, VVS-VS

2.33ctw Red Pyrope Garnet, Marquise, VVS-VS

10.2 x 5.1 mm

$ 20.42

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1.70ct Yellow Citrine, Round, VVS

1.70ct Yellow Citrine, Round, VVS

8 mm (calibrated)

$ 13.55

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2.32ct Orange Hessonite Garnet, Oval, VS-SI

2.32ct Orange Hessonite Garnet, Oval, VS-SI

8.6 x 7.2 mm

$ 50.84

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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 -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I can pick and choose from large selection and find just what I need for .y projects, currently my cane.

Posted By Darkstar731 in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always get a nice gemstone. Just like the picture. Never disappointed

Posted By Ron T in June, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

They have literally everything on this website! The prices are also pretty good, I was able to find plenty of nice stones that I could afford!

Posted By JC in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very good.

Posted By Tommy in December, 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
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