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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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0.93ct Orange Hessonite Garnet, Pear Shape, SI

0.93ct Orange Hessonite Garnet, Pear Shape, SI

7.9 x 5.6 mm

$ 20.38

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0.07ctw Black Diamond, Round, Opaque

0.07ctw Black Diamond, Round, Opaque

1.9 mm (calibrated)

$ 20.34

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5.63ct Yellow Citrine, Marquise, VVS-VS

5.63ct Yellow Citrine, Marquise, VVS-VS

20 x 10 mm (calibrated)

$ 39.25

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6.37ct Yellow Citrine, Pear Shape, VVS

6.37ct Yellow Citrine, Pear Shape, VVS

13 x 13 mm (calibrated)

$ 48.85

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1.65ctw Pink Morganite, Oval, VVS-VS

1.65ctw Pink Morganite, Oval, VVS-VS

7.9 x 5.7 mm

$ 90.39

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0.85ct Green Peridot, Oval, VS

0.85ct Green Peridot, Oval, VS

7 x 5 mm (calibrated)

$ 5.93

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1.68ct Violet Amethyst, Pear Shape, VS

1.68ct Violet Amethyst, Pear Shape, VS

10 x 7 mm (calibrated)

$ 11.05

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21.02ct White Rainbow Moonstone, Pear Shape, Translucent

21.02ct White Rainbow Moonstone, Pear Shape, Translucent

21.2 x 14.1 mm

$ 146.55

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5.50ctw Violet Amethyst, Trillion, VS

5.50ctw Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 38.35

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3.65ctw Pink Strawberry Quartz, Oval, Translucent

3.65ctw Pink Strawberry Quartz, Oval, Translucent

9 x 7 mm (calibrated)

$ 21.91

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5.31ct Orange Sunstone, Oval, Transparent

5.31ct Orange Sunstone, Oval, Transparent

14 x 10 mm (calibrated)

$ 30.96

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7.43ct Yellow Rutile Quartz, Pear Shape, Transparent

7.43ct Yellow Rutile Quartz, Pear Shape, Transparent

15 x 11 mm

$ 20.19

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1.31ct Red Pyrope Garnet, Marquise, VVS-VS

1.31ct Red Pyrope Garnet, Marquise, VVS-VS

10 x 5.2 mm

$ 11.49

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4.23ct Red Rhodolite Garnet, Oval, VS

4.23ct Red Rhodolite Garnet, Oval, VS

10 x 8 mm (calibrated)

$ 175.55

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2.26ct Yellow Citrine, Trillion, VVS-VS

2.26ct Yellow Citrine, Trillion, VVS-VS

9 x 9 mm (calibrated)

$ 17.33

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1.33ct Green Sphene, Oval, Transparent

1.33ct Green Sphene, Oval, Transparent

6.8 x 5.9 mm

$ 6.62

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12.36ctw Multicolor Pietersite, Round, Opaque
Pietersite Product Video (672464)

12.36ctw Multicolor Pietersite, Round, Opaque

15 mm (calibrated)

$ 28.93

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1.44ct Blue Kyanite, Oval, SI

1.44ct Blue Kyanite, Oval, SI

7.2 x 5.3 mm

$ 29.98

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6.19ct Violet Amethyst, Pear Shape, VS

6.19ct Violet Amethyst, Pear Shape, VS

16 x 12 mm (calibrated)

$ 47.47

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1.86ct Yellow Citrine, Oval, Transparent

1.86ct Yellow Citrine, Oval, Transparent

8 x 6 mm (calibrated)

$ 12.23

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0.04ct Black Diamond, Round, Opaque

0.04ct Black Diamond, Round, Opaque

1.9 mm (calibrated)

$ 10.86

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9.91ctw Green Prehnite, Pear Shape, Transparent

9.91ctw Green Prehnite, Pear Shape, Transparent

10 x 7 mm (calibrated)

$ 30.41

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0.67ct Yellow Beryl, Oval, VVS-VS

0.67ct Yellow Beryl, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 12.79

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8.32ctw White Topaz, Square, VVS

8.32ctw White Topaz, Square, VVS

5 x 5 mm (calibrated)

$ 69.68

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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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