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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

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For Example: 6-7
For Example: 8-9
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Golden Natural Untreated Gemstones
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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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Violet Natural Untreated Gemstones
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Yellow Natural Untreated Gemstones
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21.93ct White Scolecite, Pear Shape, Opaque

21.93ct White Scolecite, Pear Shape, Opaque

28.8 x 28.1 mm

$ 24.02

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0.25ct Green Kornerupine, Baguette, VVS

0.25ct Green Kornerupine, Baguette, VVS

5.4 x 2.7 mm

$ 13.70

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45.91ct Blue Turquoise, Oval, Opaque
Turquoise Product Video (724851)

45.91ct Blue Turquoise, Oval, Opaque

33 x 17.2 mm

$ 137.18

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0.98ct Orange Sunstone, Oval, Translucent

0.98ct Orange Sunstone, Oval, Translucent

8 x 6 mm (calibrated)

$ 6.83

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2.29ctw Orange Sunstone, Oval, Translucent

2.29ctw Orange Sunstone, Oval, Translucent

8 x 6 mm (calibrated)

$ 15.97

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3.73ct Yellow Apatite, Emerald Cut, VVS-VS
Apatite Product Video (439052)

3.73ct Yellow Apatite, Emerald Cut, VVS-VS

9 x 9 mm (calibrated)

$ 192.07

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6.90ctw Black Spinel, Round, Opaque

6.90ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 30.24

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1.70ct Green Prehnite, Oval, Transparent/Translucent

1.70ct Green Prehnite, Oval, Transparent/Translucent

6.7 x 6.1 mm

$ 7.76

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7.00ct Black Tourmaline, Emerald Cut, Opaque

7.00ct Black Tourmaline, Emerald Cut, Opaque

16.2 x 7.4 mm

$ 34.86

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2.18ct Brown Tiger'S Eye, Round, Opaque

2.18ct Brown Tiger'S Eye, Round, Opaque

8 mm (calibrated)

$ 2.17

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13.26ct Multicolor Agate, Oval, Opaque

13.26ct Multicolor Agate, Oval, Opaque

14 x 14 mm (calibrated)

$ 10.57

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48.68ct Multicolor Jasper, Oval, Opaque

48.68ct Multicolor Jasper, Oval, Opaque

30.2 x 22.9 mm

$ 25.07

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3.64ct Violet Amethyst, Oval, Transparent

3.64ct Violet Amethyst, Oval, Transparent

11 x 9 mm (calibrated)

$ 21.75

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0.83ct Blue Kyanite, Oval, SI-I1

0.83ct Blue Kyanite, Oval, SI-I1

6.3 x 4.3 mm

$ 17.28

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1.38ctw Red Rhodolite Garnet, Square, VS

1.38ctw Red Rhodolite Garnet, Square, VS

5 x 5 mm (calibrated)

$ 12.08

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25.71ct White Scolecite, Oval, Opaque

25.71ct White Scolecite, Oval, Opaque

27.1 x 21.8 mm

$ 30.69

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0.83ct Blue Kyanite, Oval, VS-SI

0.83ct Blue Kyanite, Oval, VS-SI

6.9 x 4.7 mm

$ 18.19

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5.24ct Yellow Apatite, Oval, VVS-VS

5.24ct Yellow Apatite, Oval, VVS-VS

12.7 x 10.3 mm

$ 143.29

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3.42ct Yellow Apatite, Emerald Cut, VS
Apatite Product Video (439101)

3.42ct Yellow Apatite, Emerald Cut, VS

8.7 x 8.5 mm

$ 176.10

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21.42ct Green Druzy Variscite, Fancy, Opaque

21.42ct Green Druzy Variscite, Fancy, Opaque

29.4 x 19.9 mm

$ 90.89

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3.60ctw Red Pyrope Garnet, Marquise, VVS-VS

3.60ctw Red Pyrope Garnet, Marquise, VVS-VS

12.2 x 6 mm

$ 63.10

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0.34ct Green Alexandrite, Oval, VS-SI

0.34ct Green Alexandrite, Oval, VS-SI

5.8 x 3.7 mm

$ 197.54

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1.55ct Multicolor Opal, Pear Shape, Translucent

1.55ct Multicolor Opal, Pear Shape, Translucent

10 x 8 mm (calibrated)

$ 37.36

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4.41ct Yellow Citrine, Briolette, VVS

4.41ct Yellow Citrine, Briolette, VVS

13.4 x 7.7 mm

$ 24.69

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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

Very large selection from affordable to high end I will be coming back to shop again!

Posted By GreenGator in August, 2025
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Very pleasant

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Enjoy viewing the selections. Excellent product

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Overall Rating -> 10 star ratings

good navigation and simple interface.

Posted By Dave in April, 2026
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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
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Overall Rating -> 8 star ratings

It was fine

Posted By Na in April, 2026
Source: Bizrate
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