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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
Bi-color Natural Untreated Gemstones
Black Natural Untreated Gemstones
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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
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Violet Natural Untreated Gemstones
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Yellow Natural Untreated Gemstones
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2.41Ctw Multicolor Andalusite, Round, Vs-Si
Andalusite Product Video (206864)

2.41Ctw Multicolor Andalusite, Round, Vs-Si

4 mm (calibrated)

$ 143.16

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3.67Ctw Multicolor Andalusite, Round, Vs

3.67Ctw Multicolor Andalusite, Round, Vs

3.2 mm

$ 194.41

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4.58Ct Rose Pink Morganite, Oval, Transparent

4.58Ct Rose Pink Morganite, Oval, Transparent

11.8 x 9 mm

$ 60.46

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0.97Ct Medium Pink Morganite, Pear Shape, Vvs-Vs

0.97Ct Medium Pink Morganite, Pear Shape, Vvs-Vs

9.8 x 5.2 mm

$ 102.43

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5.46Ct White Topaz, Oval, Vvs-Vs

5.46Ct White Topaz, Oval, Vvs-Vs

11.2 x 10 mm

$ 39.31

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0.64Ct Very Light Pink Morganite, Pear Shape, Vvs-Vs

0.64Ct Very Light Pink Morganite, Pear Shape, Vvs-Vs

7.8 x 4.4 mm

$ 46.46

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6.46Ctw Clear White Topaz, Oval, Vvs-Vs

6.46Ctw Clear White Topaz, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 51.17

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7.86Ct Light Pink Morganite, Marquise, Transparent
Morganite Product Video (472752)

7.86Ct Light Pink Morganite, Marquise, Transparent

21.6 x 9.1 mm

$ 108.84

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14.26Ctw Black Spinel, Round, Opaque

14.26Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 53.46

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7.61Ct Light Pink Morganite, Oval, Translucent

7.61Ct Light Pink Morganite, Oval, Translucent

14 x 10 mm (calibrated)

$ 100.45

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2.10Ct Umber Brown Diamond, Round, Vs-Si
Diamond Product Video (460456)

2.10Ct Umber Brown Diamond, Round, Vs-Si

8 mm (calibrated)

$ 4,656.96

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0.64Ct Coral Pink Tone Morganite, Pear Shape, Vvs-Vs

0.64Ct Coral Pink Tone Morganite, Pear Shape, Vvs-Vs

8.9 x 4.7 mm

$ 46.46

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3.02Ctw Multicolor Andalusite, Round, Vs

3.02Ctw Multicolor Andalusite, Round, Vs

3.5 mm (calibrated)

$ 159.97

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1.62Ct Medium Light-Yellow Beryl, Trillion, Vvs-Vs

1.62Ct Medium Light-Yellow Beryl, Trillion, Vvs-Vs

8.4 x 8.1 mm

$ 46.66

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0.86Ct Light Gold Sapphire, Pear Shape, Vs
Sapphire Product Video (752165)

0.86Ct Light Gold Sapphire, Pear Shape, Vs

7 x 5 mm (calibrated)

$ 215.00

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1.01Ct Light Yellow Beryl, Oval, Vvs-Vs

1.01Ct Light Yellow Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 24.24

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1.45Ct Light Purple Spinel, Cushion, Vs

1.45Ct Light Purple Spinel, Cushion, Vs

7 x 6 mm

$ 110.24

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1.73Ct Dijon Yellow Golden Beryl, Oval, Vvs-Vs

1.73Ct Dijon Yellow Golden Beryl, Oval, Vvs-Vs

10 x 7.5 mm

$ 50.24

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0.65Ct Medium Pink Morganite, Pear Shape, Vs

0.65Ct Medium Pink Morganite, Pear Shape, Vs

7.8 x 5.3 mm

$ 68.64

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0.99Ct Light Golden Morganite, Pear Shape, Vs

0.99Ct Light Golden Morganite, Pear Shape, Vs

8 x 6 mm (calibrated)

$ 65.34

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1.05Ct Salmon Pink Morganite, Oval, Vvs-Vs

1.05Ct Salmon Pink Morganite, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 83.16

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3.88Ct Medium Pink Morganite, Oval, Transparent

3.88Ct Medium Pink Morganite, Oval, Transparent

13 x 9 mm (calibrated)

$ 51.22

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7.59Ctw Clear White Topaz, Square, Vvs

7.59Ctw Clear White Topaz, Square, Vvs

5 x 5 mm (calibrated)

$ 77.14

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0.92Ct Medium Violet Spinel, Cushion, Vvs-Vs

0.92Ct Medium Violet Spinel, Cushion, Vvs-Vs

5.8 x 4.9 mm

$ 39.64

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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 -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very good

Posted By Niska in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Everything was good, the purchase was what I expected and what they show is what you get.

Posted By Mr. in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and functional

Posted By Dessa in March, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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