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Untreated Gemstones

Browse our selection of untreated gemstones featuring natural color, clarity and beauty without enhancements.

Untreated Gemstones Weight
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1.43ct Orange Hessonite Garnet, Oval, VS

1.43ct Orange Hessonite Garnet, Oval, VS

7.8 x 5.5 mm

$ 21.85

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1.23ct Yellow Citrine, Emerald Cut, VVS-VS

1.23ct Yellow Citrine, Emerald Cut, VVS-VS

8 x 6 mm (calibrated)

$ 9.80

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1.57ct Pink Tourmaline, Emerald Cut, VS-SI

1.57ct Pink Tourmaline, Emerald Cut, VS-SI

12.3 x 4.2 mm

$ 98.90

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2.39ct Orange Sunstone, Oval, Transparent

2.39ct Orange Sunstone, Oval, Transparent

10.5 x 8.4 mm

$ 14.28

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32.67ctw Multicolor Rhodochrosite, Cushion, Translucent

32.67ctw Multicolor Rhodochrosite, Cushion, Translucent

19.8 x 11.9 mm

$ 28.97

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1.70ct Orange Hessonite Garnet, Oval, VS-SI

1.70ct Orange Hessonite Garnet, Oval, VS-SI

8.1 x 6.7 mm

$ 27.94

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12.54ct Green Bloodstone, Oval, Opaque

12.54ct Green Bloodstone, Oval, Opaque

16 x 12 mm (calibrated)

$ 24.98

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2.86ct Orange Hessonite Garnet, Cushion, SI

2.86ct Orange Hessonite Garnet, Cushion, SI

8.4 x 6.3 mm

$ 37.23

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2.86ctw Orange Spessartite Garnet, Round, VS

2.86ctw Orange Spessartite Garnet, Round, VS

5 mm (calibrated)

$ 97.14

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10.11ct Black Star Diopside, Round, Opaque

10.11ct Black Star Diopside, Round, Opaque

12 mm (calibrated)

$ 50.35

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3.13ct Violet Amethyst, Trillion, VS

3.13ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 23.46

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4.75ct Yellow Citrine, Oval, VVS-VS

4.75ct Yellow Citrine, Oval, VVS-VS

12 x 10 mm (calibrated)

$ 36.44

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9.06ctw Brown Tiger'S Eye, Oval, Opaque

9.06ctw Brown Tiger'S Eye, Oval, Opaque

14 x 10 mm (calibrated)

$ 14.89

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1.47ct Orange Hessonite Garnet, Emerald Cut, VS

1.47ct Orange Hessonite Garnet, Emerald Cut, VS

6 x 6 mm (calibrated)

$ 28.99

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0.59ct Pink Morganite, Pear Shape, VVS

0.59ct Pink Morganite, Pear Shape, VVS

8.8 x 4 mm

$ 35.56

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0.91ct Red Rhodolite Garnet, Pear Shape, VS

0.91ct Red Rhodolite Garnet, Pear Shape, VS

7 x 5 mm (calibrated)

$ 24.17

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2.53ct Orange Spessartite Garnet, Oval, Transparent

2.53ct Orange Spessartite Garnet, Oval, Transparent

8.2 x 6.5 mm

$ 63.00

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4.31ct Pink Morganite, Pear Shape, Transparent

4.31ct Pink Morganite, Pear Shape, Transparent

14 x 9 mm (calibrated)

$ 47.22

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6.96ctw Green Prehnite, Oval, Transparent/Translucent

6.96ctw Green Prehnite, Oval, Transparent/Translucent

9.9 x 8.6 mm

$ 31.77

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2.02ct Purple Rhodolite Garnet, Oval, VS

2.02ct Purple Rhodolite Garnet, Oval, VS

8.2 x 6.5 mm

$ 80.48

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1.98ct Orange Zircon, Oval, VVS-VS

1.98ct Orange Zircon, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 43.28

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13.26ct Pink Aragonite, Pear Shape, Opaque

13.26ct Pink Aragonite, Pear Shape, Opaque

22.2 x 15.5 mm

$ 15.52

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5.05ct Yellow Citrine, Oval, VVS-VS

5.05ct Yellow Citrine, Oval, VVS-VS

14 x 10 mm (calibrated)

$ 30.32

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7.58ct Pink Strawberry Quartz, Oval, Translucent

7.58ct Pink Strawberry Quartz, Oval, Translucent

13 x 11 mm (calibrated)

$ 38.06

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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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All good

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easy interface for a pricless buy

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