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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

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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0.04Ct Black Diamond, Round, Opaque

0.04Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 16.50

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1.00Ct Golden Yellow Beryl, Oval, Vvs

1.00Ct Golden Yellow Beryl, Oval, Vvs

8 x 6 mm (calibrated)

$ 24.00

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2.39Ct Light Golden-Yellow Golden Beryl, Round, Vvs

2.39Ct Light Golden-Yellow Golden Beryl, Round, Vvs

9 mm (calibrated)

$ 63.10

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7.06Ct Bluish Grey Star Sapphire, Oval, Opaque
Star Sapphire Product Video (470846)

7.06Ct Bluish Grey Star Sapphire, Oval, Opaque

7.6 x 8.6 mm

$ 326.17

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3.70Ct Clear White Topaz, Oval, Vs

3.70Ct Clear White Topaz, Oval, Vs

11 x 9 mm (calibrated)

$ 34.19

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3.79Ct Tiger Orange Imperial Topaz, Pear Shape, Vvs-Vs
Imperial Topaz Product Video (346644)

3.79Ct Tiger Orange Imperial Topaz, Pear Shape, Vvs-Vs

17.2 x 7.2 mm

$ 2,801.57

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3.57Ctw Multicolor Andalusite, Round, Vs

3.57Ctw Multicolor Andalusite, Round, Vs

3.5 mm (calibrated)

$ 188.92

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2.29Ctw Multicolor Sapphire, Briolette, Vvs
Sapphire Product Video (269625)

2.29Ctw Multicolor Sapphire, Briolette, Vvs

5.7 x 4 mm

$ 206.10

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0.63Ct Grayish Violet Spinel, Round, Vs

0.63Ct Grayish Violet Spinel, Round, Vs

5 mm (calibrated)

$ 39.82

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3.10Ct Medium Light-Brown Rutile Topaz, Emerald Cut, Transparent

3.10Ct Medium Light-Brown Rutile Topaz, Emerald Cut, Transparent

11.1 x 6.3 mm

$ 77.50

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0.54Ct Light Gold Beryl, Oval, Vs

0.54Ct Light Gold Beryl, Oval, Vs

6.9 x 4.4 mm

$ 12.96

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0.53Ct Medium Purple Spinel, Cushion, Vvs-Vs

0.53Ct Medium Purple Spinel, Cushion, Vvs-Vs

4.8 x 4.4 mm

$ 44.52

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3.08Ctw White Topaz, Cushion, Vvs-Vs

3.08Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 20.33

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1.60Ct Very Light Pink Morganite, Pear Shape, Vvs-Vs

1.60Ct Very Light Pink Morganite, Pear Shape, Vvs-Vs

10.4 x 6.4 mm

$ 147.84

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0.44Ct Bright Pink Spinel, Cushion, Vs

0.44Ct Bright Pink Spinel, Cushion, Vs

4.7 x 4 mm

$ 36.96

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3.16Ctw Clear White Topaz, Cushion, Vvs-Vs

3.16Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 20.86

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0.82Ct Light Golden Morganite, Pear Shape, Vs-Si

0.82Ct Light Golden Morganite, Pear Shape, Vs-Si

7.6 x 5.9 mm

$ 54.12

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1.25Ct Light Purple Spinel, Cushion, Vvs-Vs

1.25Ct Light Purple Spinel, Cushion, Vvs-Vs

6.6 x 5.9 mm

$ 105.32

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4.20Ctw White Topaz, Square, Vvs-Vs

4.20Ctw White Topaz, Square, Vvs-Vs

4 x 4 mm (calibrated)

$ 38.81

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0.07Ct Black Diamond, Square, Opaque

0.07Ct Black Diamond, Square, Opaque

2 x 1.9 mm

$ 42.00

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0.62Ct Light Yellow Beryl, Pear Shape, Vs

0.62Ct Light Yellow Beryl, Pear Shape, Vs

7.8 x 5 mm

$ 16.37

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2.95Ctw Multicolor Andalusite, Oval, Vs

2.95Ctw Multicolor Andalusite, Oval, Vs

6 x 4 mm (calibrated)

$ 190.57

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0.92Ct Light Golden Morganite, Oval, Vs

0.92Ct Light Golden Morganite, Oval, Vs

8 x 6 mm (calibrated)

$ 48.58

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1.45Ct Light Grayish Purple Spinel, Cushion, Vs

1.45Ct Light Grayish Purple Spinel, Cushion, Vs

6.6 x 6.3 mm

$ 125.40

View Details
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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

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.

Posted By Guero in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

It was great!

Posted By Annie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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