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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
Untreated Gemstones Clarity
Untreated Gemstones Price
Untreated Gemstones Treatment

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Bi-color Untreated Gemstones
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Multicolor Untreated Gemstones
Orange Untreated Gemstones
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Yellow Untreated Gemstones
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2.02ct Green Peridot, Cushion, VVS-VS

2.02ct Green Peridot, Cushion, VVS-VS

8.5 x 7.1 mm

$ 77.46

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13.88ctw Multicolor Pietersite, Oval, Opaque

13.88ctw Multicolor Pietersite, Oval, Opaque

16.8 x 12.9 mm

$ 52.40

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27.22ct Black Nuummite, Oval, Opaque

27.22ct Black Nuummite, Oval, Opaque

24 x 16.9 mm

$ 118.39

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2.55ct Pink Tourmaline, Emerald Cut, VS-SI

2.55ct Pink Tourmaline, Emerald Cut, VS-SI

8.8 x 6.4 mm

$ 192.78

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4.65ct Yellow Citrine, Emerald Cut, VVS

4.65ct Yellow Citrine, Emerald Cut, VVS

11 x 9 mm (calibrated)

$ 35.67

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1.48ctw White Rainbow Moonstone, Pear Shape, Transparent

1.48ctw White Rainbow Moonstone, Pear Shape, Transparent

5 x 5 mm (calibrated)

$ 27.57

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5.28ct Pink Kunzite, Cushion, VVS-VS

5.28ct Pink Kunzite, Cushion, VVS-VS

10 x 8 mm (calibrated)

$ 145.31

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1.04ctw White Amethyst, Cushion, Transparent

1.04ctw White Amethyst, Cushion, Transparent

5 x 5 mm (calibrated)

$ 7.25

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0.90ct Yellow Color-Change Diaspore, Cushion, VS

0.90ct Yellow Color-Change Diaspore, Cushion, VS

5.6 x 5.5 mm

$ 33.32

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4.85ct Pink Strawberry Quartz, Oval, Translucent

4.85ct Pink Strawberry Quartz, Oval, Translucent

14 x 10 mm (calibrated)

$ 29.23

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0.75ct Yellow Beryl, Oval, VVS-VS

0.75ct Yellow Beryl, Oval, VVS-VS

8 x 5.7 mm

$ 14.94

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2.37ct Purple Kunzite, Cushion, VS

2.37ct Purple Kunzite, Cushion, VS

7 x 7 mm (calibrated)

$ 65.22

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13.18ctw Green Prehnite, Flower Cut, Translucent

13.18ctw Green Prehnite, Flower Cut, Translucent

17.4 x 11.7 mm

$ 19.93

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0.85ct Blue Kyanite, Round, SI

0.85ct Blue Kyanite, Round, SI

6 mm (calibrated)

$ 21.17

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1.62ct Violet Spinel, Cushion, VVS-VS

1.62ct Violet Spinel, Cushion, VVS-VS

6.7 x 6.2 mm

$ 101.23

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45.55ct Multicolor Tiger'S Eye Matrix, Oval, Opaque

45.55ct Multicolor Tiger'S Eye Matrix, Oval, Opaque

33.6 x 23.3 mm

$ 45.37

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33.49ct Brown Jasper, Fancy, Opaque

33.49ct Brown Jasper, Fancy, Opaque

39.1 x 11.1 mm

$ 6.67

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1.70ct Orange Sunstone, Oval, Translucent

1.70ct Orange Sunstone, Oval, Translucent

9 x 7 mm (calibrated)

$ 10.16

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26.73ct Multicolor Tiger'S Eye Matrix, Pear Shape, Opaque

26.73ct Multicolor Tiger'S Eye Matrix, Pear Shape, Opaque

29.3 x 19.5 mm

$ 26.63

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4.83ct Yellow Apatite, Oval, VS

4.83ct Yellow Apatite, Oval, VS

12 x 10 mm (calibrated)

$ 158.75

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1.34ct Yellow Beryl, Oval, VVS-VS

1.34ct Yellow Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 26.69

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4.13ctw Green Tsavorite Garnet, Round, VS
Tsavorite Garnet Product Video (451564)

4.13ctw Green Tsavorite Garnet, Round, VS

2.1 mm (calibrated)

$ 164.54

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1.88ct Pink Strawberry Quartz, Round, Translucent

1.88ct Pink Strawberry Quartz, Round, Translucent

8 mm (calibrated)

$ 14.43

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28.65ct Multicolor Jasper, Oval, Opaque

28.65ct Multicolor Jasper, Oval, Opaque

31.9 x 21 mm

$ 15.70

View Gem
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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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My experience was done with ease

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love the site, the experience and the products.

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I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

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Ita's a pretty good and simple way to find gems that youa're looking for amazing selection

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No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!

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