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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
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Untreated Gemstones Treatment

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0.69ct Green Tourmaline, Emerald Cut, VS

0.69ct Green Tourmaline, Emerald Cut, VS

8.8 x 3.4 mm

$ 17.18

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0.72ct Green Peridot, Square, Transparent

0.72ct Green Peridot, Square, Transparent

5 x 5 mm (calibrated)

$ 6.32

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1.55ct Yellow Beryl, Round, VVS

1.55ct Yellow Beryl, Round, VVS

8 mm (calibrated)

$ 30.88

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2.34ct Green Chrysoprase, Pear Shape, Opaque

2.34ct Green Chrysoprase, Pear Shape, Opaque

11.3 x 7.4 mm

$ 29.13

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0.62ct Green Cat'S Eye Alexandrite, Oval, Opaque

0.62ct Green Cat'S Eye Alexandrite, Oval, Opaque

5.6 x 4.5 mm

$ 128.65

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1.60ct Pink Strawberry Quartz, Round, Translucent

1.60ct Pink Strawberry Quartz, Round, Translucent

8 mm (calibrated)

$ 12.27

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4.36ct Yellow Citrine, Oval, VS

4.36ct Yellow Citrine, Oval, VS

12 x 10 mm (calibrated)

$ 30.39

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24.08ct Violet Amethyst, Emerald Cut, VVS-VS

24.08ct Violet Amethyst, Emerald Cut, VVS-VS

20 x 15 mm (calibrated)

$ 167.88

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3.06ct Violet Amethyst, Trillion, VVS-VS

3.06ct Violet Amethyst, Trillion, VVS-VS

10 x 10 mm (calibrated)

$ 20.12

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1.06ct Yellow Beryl, Oval, VVS-VS

1.06ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 21.12

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3.71ct White Dendritic Agate, Pear Shape, Opaque

3.71ct White Dendritic Agate, Pear Shape, Opaque

14 x 10 mm (calibrated)

$ 2.95

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7.42ct Red Zircon, Heart, VVS

7.42ct Red Zircon, Heart, VVS

11 x 11 mm (calibrated)

$ 742.00

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23.52ct Brown Moonstone, Oval, Opaque

23.52ct Brown Moonstone, Oval, Opaque

20 x 15 mm (calibrated)

$ 51.53

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1.87ct Yellow Beryl, Trillion, VVS-VS

1.87ct Yellow Beryl, Trillion, VVS-VS

9 x 9 mm (calibrated)

$ 44.70

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11.39ct Green Rutile Quartz, Oval, Transparent

11.39ct Green Rutile Quartz, Oval, Transparent

21.5 x 10.5 mm

$ 27.08

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19.24ct Yellow Rutile Quartz, Fancy, Transparent
Rutile Quartz Product Video (744015)

19.24ct Yellow Rutile Quartz, Fancy, Transparent

14.9 x 14 mm

$ 227.72

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3.66ct Yellow Citrine, Oval, VVS-VS

3.66ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 28.07

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3.04ctw White Topaz, Cushion, VVS-VS

3.04ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 16.65

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0.53ct Orange Citrine, Marquise, VS

0.53ct Orange Citrine, Marquise, VS

8 x 4 mm (calibrated)

$ 3.08

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3.97ctw White Topaz, Square, VS

3.97ctw White Topaz, Square, VS

4 x 4 mm (calibrated)

$ 30.44

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17.93ct White Rainbow Moonstone, Pear Shape, Translucent

17.93ct White Rainbow Moonstone, Pear Shape, Translucent

23.8 x 14.1 mm

$ 125.01

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0.30ct Violet Amethyst, Emerald Cut, VS

0.30ct Violet Amethyst, Emerald Cut, VS

5.1 x 3.2 mm

$ 1.74

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1.99ct Orange Moonstone, Cushion, Translucent

1.99ct Orange Moonstone, Cushion, Translucent

8 x 8 mm (calibrated)

$ 3.97

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33.97ct Gray Hematite, Pear Shape, Opaque

33.97ct Gray Hematite, Pear Shape, Opaque

23.6 x 17.7 mm

$ 33.12

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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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GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

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I purchased 4 gemstones in different sizes to be able to make a family ring for my granddaughter. I got exactly what I saw and they are absolutely beautiful! Shipping was quick compared to other gem stores I have dealt with! I will definitely order more stones from your company, as I am a collector and have several stones. You are my new go to company in the future

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