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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
Bi-color Natural Untreated Gemstones
Black Natural Untreated Gemstones
Blue Natural Untreated Gemstones
Brown Natural Untreated Gemstones
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
Turquoise Natural Untreated Gemstones
Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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3.80ct Yellow Citrine, Oval, VVS

3.80ct Yellow Citrine, Oval, VVS

13 x 9 mm (calibrated)

$ 26.49

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3.71ct Red Almandine Garnet, Heart, VS

3.71ct Red Almandine Garnet, Heart, VS

9.9 x 9.5 mm

$ 107.78

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2.75ct Green Malachite, Oval, Opaque

2.75ct Green Malachite, Oval, Opaque

9.9 x 7.6 mm

$ 2.11

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6.47ct Multicolor Fire Agate, Fancy, Opaque

6.47ct Multicolor Fire Agate, Fancy, Opaque

14.3 x 10.4 mm

$ 49.75

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1.63ct Yellow Sphene, Oval, Transparent

1.63ct Yellow Sphene, Oval, Transparent

7.2 x 6.2 mm

$ 8.12

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2.20ct Brown Tiger'S Eye, Oval, Opaque

2.20ct Brown Tiger'S Eye, Oval, Opaque

9.5 x 7.4 mm

$ 2.19

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0.33ct Pink Morganite, Oval, VVS

0.33ct Pink Morganite, Oval, VVS

5.3 x 3.9 mm

$ 13.70

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6.71ct Yellow Apatite, Round, VVS-VS
Apatite Product Video (447317)

6.71ct Yellow Apatite, Round, VVS-VS

12 mm (calibrated)

$ 183.50

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30.93ct Brown Moonstone, Oval, Translucent

30.93ct Brown Moonstone, Oval, Translucent

25 x 18 mm (calibrated)

$ 67.78

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5.95ct Yellow Citrine, Oval, VVS-VS

5.95ct Yellow Citrine, Oval, VVS-VS

14 x 10 mm (calibrated)

$ 35.72

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49.59ct Green Variscite, Fancy, Opaque
Variscite Product Video (650420)

49.59ct Green Variscite, Fancy, Opaque

34.3 x 27.4 mm

$ 58.28

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0.78ct Yellow Color-Change Diaspore, Emerald Cut, VS

0.78ct Yellow Color-Change Diaspore, Emerald Cut, VS

7.1 x 3.9 mm

$ 27.95

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3.69ctw Yellow Citrine, Oval, VVS

3.69ctw Yellow Citrine, Oval, VVS

10 x 8 mm (calibrated)

$ 20.22

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1.20ct Multicolor Chocolate Opal, Oval, Transparent

1.20ct Multicolor Chocolate Opal, Oval, Transparent

9 x 7 mm (calibrated)

$ 35.86

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0.93ct Orange Zircon, Oval, VVS

0.93ct Orange Zircon, Oval, VVS

5.9 x 4.7 mm

$ 13.89

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2.47ctw Multicolor Andalusite, Round, VS-SI

2.47ctw Multicolor Andalusite, Round, VS-SI

3.8 mm

$ 110.71

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3.52ctw Orange Moonstone, Cushion, Translucent

3.52ctw Orange Moonstone, Cushion, Translucent

8 x 8 mm (calibrated)

$ 7.01

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6.00ctw Pink Rose Quartz, Emerald Cut, Transparent

6.00ctw Pink Rose Quartz, Emerald Cut, Transparent

9 x 9 mm (calibrated)

$ 32.87

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1.08ct Green Chrome Diopside, Marquise, VS

1.08ct Green Chrome Diopside, Marquise, VS

10 x 5 mm (calibrated)

$ 22.41

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10.60ct Multicolor Labradorite, Baguette, Translucent

10.60ct Multicolor Labradorite, Baguette, Translucent

16 x 12 mm (calibrated)

$ 13.59

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1.95ct Purple Tourmaline, Oval, VVS
Tourmaline Product Video (744413)

1.95ct Purple Tourmaline, Oval, VVS

9.5 x 8.2 mm

$ 226.59

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5.25ct Pink Morganite, Round, Transparent

5.25ct Pink Morganite, Round, Transparent

11 mm (calibrated)

$ 57.52

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3.03ct Violet Amethyst, Trillion, VS
Amethyst Product Video (551162)

3.03ct Violet Amethyst, Trillion, VS

10 x 10 mm (calibrated)

$ 23.24

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28.85ct Violet Amethyst, Cushion, VVS-VS
Amethyst Product Video (679954)

28.85ct Violet Amethyst, Cushion, VVS-VS

23.8 x 16.6 mm

$ 229.88

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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

I have a beautiful emerald I purchased from a company names gemselect and they are awesome! You should try them out?

Posted By Lynn in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
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Overall Rating -> 10 star ratings

Very food

Posted By Keeto in July, 2025
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Overall Rating -> 10 star ratings

selection was broad and the check out was quick. Great site

Posted By JC Karl in September, 2025
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Overall Rating -> 8 star ratings

The website was easy to use and there were a lot of good options, I was satisfied.

Posted By Brielly in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 2025
Source: Bizrate
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