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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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1.47ct Orange Zircon, Round, VVS

1.47ct Orange Zircon, Round, VVS

6.5 mm (calibrated)

$ 26.84

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0.75ct Yellow Citrine, Heart, VVS-VS

0.75ct Yellow Citrine, Heart, VVS-VS

6 x 6 mm (calibrated)

$ 5.23

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9.98ct Multicolor Labradorite, Pear Shape, Translucent

9.98ct Multicolor Labradorite, Pear Shape, Translucent

18 x 13 mm (calibrated)

$ 22.07

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1.38ct Green Tourmaline, Emerald Cut, VVS-VS

1.38ct Green Tourmaline, Emerald Cut, VVS-VS

17.8 x 3.1 mm

$ 33.27

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2.60ct Yellow Citrine, Square, VVS

2.60ct Yellow Citrine, Square, VVS

8 x 8 mm (calibrated)

$ 15.21

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6.97ct Green Chrysoprase, Oval, Opaque

6.97ct Green Chrysoprase, Oval, Opaque

13 x 11 mm (calibrated)

$ 86.78

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12.72ct Multicolor Jasper, Oval, Opaque

12.72ct Multicolor Jasper, Oval, Opaque

20 x 15 mm (calibrated)

$ 33.60

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3.38ct Green Chrysoprase, Baguette, Translucent

3.38ct Green Chrysoprase, Baguette, Translucent

9.6 x 7.6 mm

$ 28.05

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5.37ct Multicolor Tourmaline, Flower Cut, Transparent
Tourmaline Product Video (690463)

5.37ct Multicolor Tourmaline, Flower Cut, Transparent

13 x 13 mm (calibrated)

$ 104.67

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3.58ctw Orange Sunstone, Oval, Translucent

3.58ctw Orange Sunstone, Oval, Translucent

7 x 5 mm (calibrated)

$ 20.51

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1.86ct Orange Moonstone, Square, Translucent

1.86ct Orange Moonstone, Square, Translucent

7 x 7 mm (calibrated)

$ 3.73

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2.80ctw Red Rhodolite Garnet, Square, VS

2.80ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 24.51

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40.40ct Multicolor Lepidolite, Pear Shape, Opaque
Lepidolite Product Video (696114)

40.40ct Multicolor Lepidolite, Pear Shape, Opaque

38.3 x 27.5 mm

$ 20.12

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1.99ctw Blue Kyanite, Oval, SI

1.99ctw Blue Kyanite, Oval, SI

7.1 x 5.2 mm

$ 41.43

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12.62ct Multicolor Boulder Opal, Cushion, Opaque
Boulder Opal Product Video (679239)

12.62ct Multicolor Boulder Opal, Cushion, Opaque

14 x 14 mm (calibrated)

$ 62.85

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4.50ct Black Star Diopside, Round, Opaque

4.50ct Black Star Diopside, Round, Opaque

9 mm (calibrated)

$ 18.68

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1.00ct Gray Cat'S Eye Alexandrite, Oval, Opaque

1.00ct Gray Cat'S Eye Alexandrite, Oval, Opaque

5.6 x 4.4 mm

$ 207.50

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10.28ctw Multicolor Pietersite, Pear Shape, Opaque

10.28ctw Multicolor Pietersite, Pear Shape, Opaque

18 x 14 mm

$ 24.06

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21.68ct Gray Hematite, Emerald Cut, Opaque

21.68ct Gray Hematite, Emerald Cut, Opaque

20.5 x 12.2 mm

$ 19.95

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65.58ct Violet Amethyst, Oval, VVS
Amethyst Product Video (724445)

65.58ct Violet Amethyst, Oval, VVS

30 x 22 mm (calibrated)

$ 491.19

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2.78ctw Red Pyrope Garnet, Square, VS

2.78ctw Red Pyrope Garnet, Square, VS

4 x 4 mm (calibrated)

$ 21.32

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1.57ct Violet Amethyst, Marquise, VS

1.57ct Violet Amethyst, Marquise, VS

12 x 6.1 mm

$ 10.32

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10.75ct Multicolor Coral, Oval, Translucent

10.75ct Multicolor Coral, Oval, Translucent

16.8 x 12.7 mm

$ 33.57

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5.84ct White Topaz, Cushion, VVS-VS

5.84ct White Topaz, Cushion, VVS-VS

12 x 10 mm (calibrated)

$ 38.78

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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.

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