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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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0.75Ct Very Light Honey Yellow Beryl, Cushion, Vs

0.75Ct Very Light Honey Yellow Beryl, Cushion, Vs

7 x 5 mm (calibrated)

$ 21.60

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4.84Ct Clear White Topaz, Round, Vvs-Vs

4.84Ct Clear White Topaz, Round, Vvs-Vs

10 mm (calibrated)

$ 31.94

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0.22Ct Lemon Yellow Diamond, Round, Vs
Diamond Product Video (543907)

0.22Ct Lemon Yellow Diamond, Round, Vs

3.8 mm

$ 398.48

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0.23Ct Baby Blue Aquamarine, Oval, Vs

0.23Ct Baby Blue Aquamarine, Oval, Vs

4.9 x 3.8 mm

$ 38.64

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1.18Ct Light Pink Morganite, Oval, Vvs-Vs

1.18Ct Light Pink Morganite, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 99.12

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0.52Ct Very Light Pink Morganite, Pear Shape, Vs

0.52Ct Very Light Pink Morganite, Pear Shape, Vs

6.6 x 5 mm

$ 28.08

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4.13Ct Clear White Topaz, Oval, Vvs-Vs

4.13Ct Clear White Topaz, Oval, Vvs-Vs

11 x 9 mm (calibrated)

$ 38.16

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0.19Ct L Diamond, Round, Vs

0.19Ct L Diamond, Round, Vs

3.8 mm

$ 384.34

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0.65Ct Medium Golden Beryl, Oval, Vvs

0.65Ct Medium Golden Beryl, Oval, Vvs

7 x 5 mm (calibrated)

$ 19.50

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1.54Ct Light Pink Morganite, Round, Vvs-Vs

1.54Ct Light Pink Morganite, Round, Vvs-Vs

8 mm (calibrated)

$ 101.64

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1.08Ct Medium Purple Spinel, Cushion, Vs

1.08Ct Medium Purple Spinel, Cushion, Vs

5.9 x 5.4 mm

$ 85.01

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0.54Ct Golden Beryl, Pear Shape, Vs

0.54Ct Golden Beryl, Pear Shape, Vs

7 x 5 mm (calibrated)

$ 15.55

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0.25Ct Champagne Diamond, Round, Vs-Si
Diamond Product Video (564593)

0.25Ct Champagne Diamond, Round, Vs-Si

4 mm (calibrated)

$ 549.89

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0.08Ctw Black Diamond, Round, Opaque

0.08Ctw Black Diamond, Round, Opaque

2 mm (calibrated)

$ 76.80

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1.67Ct Warm White Topaz, Marquise, Vs

1.67Ct Warm White Topaz, Marquise, Vs

12.1 x 5 mm

$ 11.03

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3.73Ct Light Pink Morganite, Oval, Transparent

3.73Ct Light Pink Morganite, Oval, Transparent

12 x 9.1 mm

$ 44.76

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1.28Ct Dark Purple Spinel, Cushion, Vvs

1.28Ct Dark Purple Spinel, Cushion, Vvs

7.1 x 5.4 mm

$ 153.60

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7.57Ct Coral Pink Morganite, Pear Shape, Transparent

7.57Ct Coral Pink Morganite, Pear Shape, Transparent

16 x 12 mm (calibrated)

$ 99.92

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1.84Ct Very Light Brown Rutile Topaz, Trillion, Transparent

1.84Ct Very Light Brown Rutile Topaz, Trillion, Transparent

9.6 x 7.7 mm

$ 46.00

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3.02Ctw Clear White Topaz, Cushion, Vvs-Vs

3.02Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 19.93

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0.09Ct Black Diamond, Round, Opaque

0.09Ct Black Diamond, Round, Opaque

2.7 mm (calibrated)

$ 37.12

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0.16Ctw H Diamond, Round, Vvs-Vs
Diamond Product Video (567414)

0.16Ctw H Diamond, Round, Vvs-Vs

2.8 mm (calibrated)

$ 344.63

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0.19Ctw H Diamond, Round, Vvs-Vs
Diamond Product Video (565168)

0.19Ctw H Diamond, Round, Vvs-Vs

2.9 mm (calibrated)

$ 415.91

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0.18Ct Black Diamond, Square, Opaque

0.18Ct Black Diamond, Square, Opaque

2.9 x 2.7 mm

$ 108.00

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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

Plan on purchasing on an ongoing basis. So far.....so good....

Posted By Jim in January, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate

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

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

All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.

Posted By Bob D in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My experience was done with ease

Posted By Barb in October, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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