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Home › Gemstones › Natural Untreated Gemstones

Natural Untreated Gemstones

Discover genuine untreated gemstones selected for natural beauty, rarity, and authenticity.

Natural Untreated Gemstones Weight
Natural Untreated Gemstones Size
Natural Untreated Gemstones Clarity
Natural Untreated Gemstones Price
Natural Untreated Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
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Golden Natural Untreated Gemstones
Gray Natural Untreated Gemstones
Green Natural Untreated Gemstones
Multicolor Natural Untreated Gemstones
Orange Natural Untreated Gemstones
Pink Natural Untreated Gemstones
Purple Natural Untreated Gemstones
Red Natural Untreated Gemstones
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Yellow Natural Untreated Gemstones
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0.79ct Green Tourmaline, Emerald Cut, VVS-VS

0.79ct Green Tourmaline, Emerald Cut, VVS-VS

4.9 x 4.7 mm

$ 39.34

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2.43ctw Violet Amethyst, Oval, VVS-VS

2.43ctw Violet Amethyst, Oval, VVS-VS

6 x 4 mm (calibrated)

$ 13.31

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7.37ct White Quartz, Round, VVS

7.37ct White Quartz, Round, VVS

13 mm (calibrated)

$ 10.42

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7.76ct Multicolor Ruby-Zoisite, Baguette, Opaque

7.76ct Multicolor Ruby-Zoisite, Baguette, Opaque

13 x 11 mm (calibrated)

$ 21.26

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3.27ct Yellow Citrine, Pear Shape, VVS-VS

3.27ct Yellow Citrine, Pear Shape, VVS-VS

10 x 10 mm (calibrated)

$ 25.08

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1.80ct Green Tourmaline, Emerald Cut, VVS-VS

1.80ct Green Tourmaline, Emerald Cut, VVS-VS

17.9 x 3.3 mm

$ 49.30

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1.12ct Yellow Sphene, Oval, Transparent

1.12ct Yellow Sphene, Oval, Transparent

6.5 x 5.5 mm

$ 5.58

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1.16ctw Green Peridot, Oval, Transparent

1.16ctw Green Peridot, Oval, Transparent

6.1 x 4.2 mm

$ 10.17

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1.61ct Orange Zircon, Round, VVS-VS

1.61ct Orange Zircon, Round, VVS-VS

6.5 mm (calibrated)

$ 38.40

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2.87ctw Red Rhodolite Garnet, Square, VS

2.87ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 22.84

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15.79ctw Violet Amethyst, Oval, Transparent

15.79ctw Violet Amethyst, Oval, Transparent

14 x 10 mm (calibrated)

$ 86.50

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1.11ct Orange Moonstone, Marquise, Translucent

1.11ct Orange Moonstone, Marquise, Translucent

9.4 x 4.9 mm

$ 2.21

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0.50ct Green Cat'S Eye Alexandrite, Oval, Transparent

0.50ct Green Cat'S Eye Alexandrite, Oval, Transparent

5.8 x 4.3 mm

$ 103.75

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3.05ctw White Topaz, Cushion, VVS-VS

3.05ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 16.72

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5.18ctw Pink Strawberry Quartz, Oval, Transparent

5.18ctw Pink Strawberry Quartz, Oval, Transparent

10 x 8 mm (calibrated)

$ 38.49

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8.71ct Pink Kunzite, Pear Shape, VVS-VS
Kunzite Product Video (427047)

8.71ct Pink Kunzite, Pear Shape, VVS-VS

15 x 10 mm (calibrated)

$ 216.88

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0.17ct Green Kornerupine, Oval, VVS

0.17ct Green Kornerupine, Oval, VVS

4.1 x 2.9 mm

$ 7.76

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1.66ct Yellow Citrine, Emerald Cut, VVS-VS

1.66ct Yellow Citrine, Emerald Cut, VVS-VS

8.2 x 6.3 mm

$ 10.37

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1.50ctw Green Peridot, Oval, VS

1.50ctw Green Peridot, Oval, VS

7 x 5 mm (calibrated)

$ 20.92

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0.52ct Pink Morganite, Oval, VS

0.52ct Pink Morganite, Oval, VS

6.9 x 4.2 mm

$ 31.33

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0.50ct Orange Spessartite Garnet, Pear Shape, VS

0.50ct Orange Spessartite Garnet, Pear Shape, VS

5 x 4 mm (calibrated)

$ 17.43

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0.86ct Yellow Beryl, Trillion, VVS

0.86ct Yellow Beryl, Trillion, VVS

7 x 7 mm (calibrated)

$ 17.13

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3.98ctw Yellow Citrine, Oval, VS

3.98ctw Yellow Citrine, Oval, VS

10 x 8 mm (calibrated)

$ 21.80

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1.09ct Purple Rhodolite Garnet, Oval, VS

1.09ct Purple Rhodolite Garnet, Oval, VS

7 x 5 mm (calibrated)

$ 28.95

View Gem
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Why Buy Natural Untreated Gemstones from GemSelect?

Why Choose Untreated Gemstones?

Untreated gemstones are valued for their natural color and clarity without artificial enhancement. Many buyers prefer these gems for authenticity, rarity, and long-term value.

Natural Loose Untreated Gems Online

Shop loose untreated gemstones online at GemSelect with confidence. Browse sapphires, rubies, spinels, aquamarine, garnet, tourmaline, and more with full disclosure.

Natural Untreated Gemstones for Jewelry and Collecting

Untreated Gemstones for Jewelry

Natural untreated gems are excellent for rings, earrings, pendants, and custom jewelry. Their original beauty makes every piece unique and meaningful.

Popular Untreated Gemstone Types

Popular choices include untreated sapphire, ruby, spinel, garnet, tourmaline, zircon, aquamarine, and many collector stones in a wide range of colors.

Certified Natural Gemstones

Many buyers choose untreated gemstones with gemological reports for added confidence. Certification can confirm identity and indicate whether treatments are present.

Collector Quality Untreated Gems

Collectors appreciate untreated gemstones because naturally fine examples are rarer than treated material. These stones can be especially desirable when color and clarity are strong.

Calibrated Untreated Gemstones

We also offer calibrated untreated gemstones in popular sizes suitable for standard jewelry settings, making custom designs easier and faster.

Worldwide Shipping from GemSelect

GemSelect offers secure online ordering, detailed product images, and worldwide delivery so you can shop untreated gemstones from anywhere.

Learn more about gemstone treatments, identification, and care on our Gemstone Information Pages.

FAQs

What does untreated gemstone mean?

An untreated gemstone has not undergone enhancement processes such as heating, dyeing, filling, coating, or diffusion to improve appearance.

Are untreated gemstones more valuable?

Often yes, especially in sapphire, ruby, and other premium gems where fine untreated stones are rarer than treated examples.

How can I verify a gemstone is untreated?

Independent laboratory certification is the best way to verify whether a gemstone is natural and untreated.

Which gemstones are commonly sold untreated?

Spinel, garnet, zircon, tourmaline, aquamarine, and some sapphires or rubies are often available untreated depending on source and quality.

Are all untreated gemstones natural?

Natural untreated gemstones are mined stones that have not been enhanced after cutting. Always buy from trusted sellers with clear disclosure.

GemSelect Certified Store Reviews

GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

Web site is very simple to navigate Selection is terrific

Posted By ToRa.62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The process was pleasant, I chose to purchase the stone traditional to the month of March as it is the month in which I was born.

Posted By Maharishi in June, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I've purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.

Posted By Maggie in August, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Site worked well and helped me find a rock that matched what I was looking for. Well within budget and I trust it will show up, so that's definitely positive. Not much else to it. Satisfied.

Posted By Big Ricky in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very food

Posted By Keeto in July, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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