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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
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2.29ctw Multicolor Sapphire, Briolette, VVS

5.7 x 4 mm

$ 171.06

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4.06ctw Pink Malaya Garnet, Round, VS

5.5 mm (calibrated)

$ 133.11

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1.34ct Purple Sapphire, Pear Shape, VS

7.3 x 5.7 mm

$ 707.62

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10.97ctw Multicolor Pietersite, Pear Shape, Opaque

17.5 x 11.4 mm

$ 48.44

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1.65ct Yellow Citrine, Heart, VVS

8 x 8 mm (calibrated)

$ 11.50

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8.46ctw White Topaz, Square, VVS-VS

5.3 x 5.2 mm

$ 68.13

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1.27ct Yellow Beryl, Trillion, VVS

8.5 x 7.9 mm

$ 25.30

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29.73ctw Multicolor Jasper, Oval, Opaque

33.9 x 13.2 mm

$ 48.86

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2.49ct Pink Kunzite, Emerald Cut, VVS

9.6 x 5.2 mm

$ 65.73

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1.36ct Yellow Citrine, Square, VS

7 x 7 mm (calibrated)

$ 8.95

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1.04ctw Red Pyrope Garnet, Square, VS

4 x 4 mm (calibrated)

$ 7.98

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5.15ctw Multicolor Opal, Square, Transparent

4.6 x 4.5 mm

$ 36.56

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6.99ctw Pink Strawberry Quartz, Oval, Translucent

11 x 9 mm (calibrated)

$ 54.60

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1.89ct Orange Citrine, Round, VVS-VS

8 mm (calibrated)

$ 15.69

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0.73ct Green Peridot, Oval, VS

7 x 5 mm (calibrated)

$ 5.09

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5.90ct Brown Smoky Quartz, Emerald Cut, VVS

10.4 x 10.3 mm

$ 32.32

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0.85ct Orange Sphalerite, Square, SI

5 x 5 mm (calibrated)

$ 50.80

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0.51ct Pink Morganite, Pear Shape, VS

7 x 5 mm (calibrated)

$ 22.86

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0.63ct Yellow Zircon, Oval, VVS

5 x 4 mm (calibrated)

$ 9.41

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0.18ctw White Diamond, Round, VVS-VS

2.8 mm (calibrated)

$ 321.79

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2.78ctw Green Peridot, Round, VVS-VS

4.5 mm (calibrated)

$ 45.68

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2.46ctw Yellow Citrine, Round, VVS-VS

7 mm (calibrated)

$ 16.33

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2.84ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 15.55

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1.29ctw White Rainbow Moonstone, Oval, Transparent

7 x 5 mm (calibrated)

$ 21.85

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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!

Overall Rating -> 9 star ratings

Fast snd easy to find what I was looking for

Posted By Bawb in May, 2026
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Overall Rating -> 10 star ratings

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.

Posted By Happy Customer in June, 2025
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Overall Rating -> 10 star ratings

Enjoy every moment

Posted By Ferns in October, 2025
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Overall Rating -> 10 star ratings

Over pretty well experience the your website no complaints about it very easy reliable service provided

Posted By Blas in January, 2026
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Overall Rating -> 10 star ratings

It was good. There was a large selection at prices I could afford.

Posted By Zorah in February, 2026
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Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
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