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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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0.07ctw White Diamond, Round, VS-SI

0.07ctw White Diamond, Round, VS-SI

2.1 mm (calibrated)

$ 127.18

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1.99ct Violet Amethyst, Heart, VVS

1.99ct Violet Amethyst, Heart, VVS

8 x 8 mm (calibrated)

$ 13.88

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2.74ct Green Fluorite, Marquise, Transparent

2.74ct Green Fluorite, Marquise, Transparent

13 x 6.4 mm

$ 11.27

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2.31ct Yellow Citrine, Square, VVS-VS

2.31ct Yellow Citrine, Square, VVS-VS

8 x 8 mm (calibrated)

$ 13.51

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2.32ct Multicolor Opal, Oval, Transparent

2.32ct Multicolor Opal, Oval, Transparent

11.8 x 8.8 mm

$ 103.98

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5.43ctw Green Peridot, Oval, VS

5.43ctw Green Peridot, Oval, VS

8 x 6 mm (calibrated)

$ 49.58

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11.10ct Turquoise Grandidierite, Oval, Translucent

11.10ct Turquoise Grandidierite, Oval, Translucent

14.8 x 13.3 mm

$ 364.83

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1.99ctw Orange Zircon, Oval, VVS

1.99ctw Orange Zircon, Oval, VVS

6 x 4.9 mm

$ 49.55

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20.06ct Violet Amethyst, Cushion, VVS-VS
Amethyst Product Video (713830)

20.06ct Violet Amethyst, Cushion, VVS-VS

20 x 15 mm (calibrated)

$ 139.86

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50.58ct Brown Tiger'S Eye Matrix, Oval, Opaque

50.58ct Brown Tiger'S Eye Matrix, Oval, Opaque

37 x 21.6 mm

$ 50.38

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1.83ct Yellow Beryl, Trillion, VVS-VS

1.83ct Yellow Beryl, Trillion, VVS-VS

9 x 9 mm (calibrated)

$ 40.10

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1.03ct Red Rhodolite Garnet, Oval, VS

1.03ct Red Rhodolite Garnet, Oval, VS

7 x 5 mm (calibrated)

$ 22.57

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1.37ct Green Sphene, Oval, VS-SI

1.37ct Green Sphene, Oval, VS-SI

8 x 5.7 mm

$ 48.90

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7.57ct Pink Kunzite, Oval, VVS

7.57ct Pink Kunzite, Oval, VVS

13.2 x 9.5 mm

$ 207.35

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1.30ct Red Pyrope Garnet, Fancy, VS

1.30ct Red Pyrope Garnet, Fancy, VS

8.6 x 3.4 mm

$ 15.57

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10.42ct Pink Morganite, Pear Shape, Transparent

10.42ct Pink Morganite, Pear Shape, Transparent

20.3 x 12.6 mm

$ 114.16

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1.86ctw Brown Tourmaline, Oval, VS

1.86ctw Brown Tourmaline, Oval, VS

6.3 x 4.7 mm

$ 70.40

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19.79ct Violet Amethyst, Emerald Cut, VVS-VS

19.79ct Violet Amethyst, Emerald Cut, VVS-VS

18.1 x 14.2 mm

$ 137.98

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22.96ct Brown Moonstone, Oval, Opaque

22.96ct Brown Moonstone, Oval, Opaque

22.2 x 16.1 mm

$ 50.31

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2.49ct Orange Sunstone, Round, Translucent

2.49ct Orange Sunstone, Round, Translucent

9.5 mm (calibrated)

$ 13.55

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26.10ct Violet Amethyst, Oval, VVS

26.10ct Violet Amethyst, Oval, VVS

22.6 x 15.5 mm

$ 207.96

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44.70ct Multicolor Tiger'S Eye Matrix, Oval, Opaque

44.70ct Multicolor Tiger'S Eye Matrix, Oval, Opaque

30 x 22 mm (calibrated)

$ 25.83

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1.86ct Orange Sunstone, Oval, Translucent

1.86ct Orange Sunstone, Oval, Translucent

9.3 x 7.5 mm

$ 11.11

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8.24ct Pink Strawberry Quartz, Oval, Translucent

8.24ct Pink Strawberry Quartz, Oval, Translucent

13 x 11 mm (calibrated)

$ 49.65

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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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Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

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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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