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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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1.11ctw Green Peridot, Marquise, VVS-VS

1.11ctw Green Peridot, Marquise, VVS-VS

8 x 4 mm (calibrated)

$ 16.58

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7.03ct Multicolor Coral, Oval, Opaque

7.03ct Multicolor Coral, Oval, Opaque

15.2 x 12 mm

$ 21.95

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22.47ct Multicolor Pietersite, Oval, Opaque
Pietersite Product Video (347563)

22.47ct Multicolor Pietersite, Oval, Opaque

30 x 22 mm (calibrated)

$ 98.47

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4.29ctw Green Peridot, Round, VS

4.29ctw Green Peridot, Round, VS

5.7 mm

$ 41.93

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0.41ct Yellow Color-Change Diaspore, Cushion, VVS-VS

0.41ct Yellow Color-Change Diaspore, Cushion, VVS-VS

5.3 x 4.3 mm

$ 21.65

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13.10ct Green Cat'S Eye Aquamarine, Oval, Transparent

13.10ct Green Cat'S Eye Aquamarine, Oval, Transparent

15.2 x 13.1 mm

$ 174.40

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9.11ct Multicolor Fire Agate, Fancy, Opaque

9.11ct Multicolor Fire Agate, Fancy, Opaque

18.5 x 11.1 mm

$ 68.47

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2.01ctw Purple Rhodolite Garnet, Oval, VS

2.01ctw Purple Rhodolite Garnet, Oval, VS

5.5 x 3.5 mm

$ 32.71

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17.43ct Green Maw-Sit-Sit, Square, Opaque

17.43ct Green Maw-Sit-Sit, Square, Opaque

12.6 x 12.2 mm

$ 57.29

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2.72ct Orange Pyrope Garnet, Fancy, Translucent

2.72ct Orange Pyrope Garnet, Fancy, Translucent

12.8 x 10.3 mm

$ 6.82

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2.45ctw Yellow Color-Change Diaspore, Cushion, VVS-VS

2.45ctw Yellow Color-Change Diaspore, Cushion, VVS-VS

10.2 x 4.5 mm

$ 126.16

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5.27ct Multicolor Labradorite, Pear Shape, Translucent

5.27ct Multicolor Labradorite, Pear Shape, Translucent

14x9 mm (calibrated)

$ 11.65

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0.51ct Yellow Color-Change Diaspore, Oval, VVS-VS

0.51ct Yellow Color-Change Diaspore, Oval, VVS-VS

5.7 x 4.5 mm

$ 26.93

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0.84ct Green Tourmaline, Emerald Cut, VS

0.84ct Green Tourmaline, Emerald Cut, VS

4.7 x 4.6 mm

$ 41.83

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0.48ct Orange Citrine, Marquise, VS

0.48ct Orange Citrine, Marquise, VS

8 x 4 mm (calibrated)

$ 3.34

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3.61ctw Multicolor Andalusite, Oval, VS-SI

3.61ctw Multicolor Andalusite, Oval, VS-SI

6 x 4 mm (calibrated)

$ 177.99

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0.35ct Pink Morganite, Round, VS-SI

0.35ct Pink Morganite, Round, VS-SI

5 mm (calibrated)

$ 14.53

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3.17ct Yellow Citrine, Oval, VVS-VS

3.17ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 24.31

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20.16ctw Multicolor Labradorite, Oval, Translucent

20.16ctw Multicolor Labradorite, Oval, Translucent

20 x 15 mm (calibrated)

$ 44.17

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1.13ct Yellow Citrine, Round, VVS

1.13ct Yellow Citrine, Round, VVS

7 mm (calibrated)

$ 7.88

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0.72ct Orange Fire Opal, Oval, Translucent

0.72ct Orange Fire Opal, Oval, Translucent

8 x 6 mm (calibrated)

$ 19.72

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1.96ct Green Tourmaline, Emerald Cut, VVS-VS

1.96ct Green Tourmaline, Emerald Cut, VVS-VS

19.8 x 3.3 mm

$ 47.24

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2.12ct Orange Hessonite Garnet, Emerald Cut, VS

2.12ct Orange Hessonite Garnet, Emerald Cut, VS

8 x 6 mm (calibrated)

$ 34.98

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2.07ctw Red Rhodolite Garnet, Oval, VS

2.07ctw Red Rhodolite Garnet, Oval, VS

7 x 5 mm (calibrated)

$ 54.98

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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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Site worked well and helped me find a rock that matched what I was looking for. Well within budget and I trust it will show up, so that's definitely positive. Not much else to it. Satisfied.

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