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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
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Yellow Untreated Gemstones
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43.55ct Green Jade, Fancy, Translucent

33.1 x 17.8 mm

$ 27.19

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1.44ct Yellow Citrine, Oval, Transparent

10 x 8 mm (calibrated)

$ 11.05

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3.85ctw Red Pyrope Garnet, Marquise, VVS

12.1 x 5.9 mm

$ 21.10

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9.10ct Multicolor Pietersite, Pear Shape, Opaque

22.9 x 12.9 mm

$ 22.30

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3.12ctw Yellow Citrine, Square, VS

7 x 7 mm (calibrated)

$ 20.51

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12.48ct Orange Moonstone, Round, Translucent

14 mm (calibrated)

$ 24.86

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0.73ct Green Tourmaline, Emerald Cut, VS

7.5 x 3.5 mm

$ 36.35

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2.14ctw Blue Kyanite, Oval, SI

7 x 5 mm (calibrated)

$ 53.29

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5.36ct Multicolor Pietersite, Marquise, Opaque

21 x 8 mm

$ 12.96

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2.91ctw Green Prehnite, Oval, Transparent

6.9 x 6.1 mm

$ 22.32

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16.56ctw Multicolor Fossil Coral, Pear Shape, Opaque

19.3 x 12.1 mm

$ 17.78

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1.03ct Violet Amethyst, Square, VVS-VS

6 x 6 mm (calibrated)

$ 8.21

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19.55ct Multicolor Jasper, Oval, Opaque

20 x 15 mm (calibrated)

$ 12.46

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7.40ct Yellow Citrine, Briolette, VVS-VS

14 x 9 mm (calibrated)

$ 41.75

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24.36ct Black Obsidian, Oval, Opaque

31.7 x 21.3 mm

$ 15.16

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36.32ctw Multicolor Rutile Quartz, Sphere / Ball, Translucent

8.5 mm

$ 39.79

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7.58ct Multicolor Rainbow Pyrite, Fancy, Opaque

17.7 x 10.9 mm

$ 22.65

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11.54ct White Rainbow Moonstone, Oval, Translucent

19.3 x 11.7 mm

$ 11.50

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0.84ct Orange Zircon, Oval, VS

6 x 4 mm (calibrated)

$ 12.55

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0.86ct Green Chrome Diopside, Oval, VS

7 x 5 mm (calibrated)

$ 21.41

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1.06ct Orange Zircon, Oval, VVS-VS

6.1 x 5 mm

$ 15.84

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4.47ct Pink Moonstone, Flower Cut, Translucent

12 x 11.3 mm

$ 19.59

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5.53ctw Violet Amethyst, Oval, Transparent

10 x 8 mm (calibrated)

$ 30.30

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13.81ct Violet Amethyst, Cushion, VVS

15 x 15 mm (calibrated)

$ 96.28

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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!

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I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

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

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Very good place to buy gemstones

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Easy and functional

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

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