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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
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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0.43Ct Light Gold Beryl, Oval, Vs

0.43Ct Light Gold Beryl, Oval, Vs

6 x 4 mm (calibrated)

$ 9.89

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1.19Ct Light Reddish Purple Spinel, Cushion, Vs

1.19Ct Light Reddish Purple Spinel, Cushion, Vs

6.3 x 5.5 mm

$ 157.08

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2.08Ct Light Earthy Yellow Beryl, Oval, Vvs

2.08Ct Light Earthy Yellow Beryl, Oval, Vvs

10 x 8 mm (calibrated)

$ 49.92

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1.16Ct Yellow Green Chrysoberyl, Oval, Vs-Si
Chrysoberyl Product Video (366304)

1.16Ct Yellow Green Chrysoberyl, Oval, Vs-Si

7.1 x 6.1 mm

$ 162.97

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1.43Ct Mellow Yellow Beryl, Round, Vvs

1.43Ct Mellow Yellow Beryl, Round, Vvs

8 mm (calibrated)

$ 34.32

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0.92Ct Medium Pink Morganite, Pear Shape, Vvs-Vs

0.92Ct Medium Pink Morganite, Pear Shape, Vvs-Vs

9.4 x 5.4 mm

$ 66.79

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0.52Ct Grayish Green Chrysoberyl Cat's Eye, Oval, Translucent

0.52Ct Grayish Green Chrysoberyl Cat's Eye, Oval, Translucent

4.6 x 4.5 mm

$ 18.72

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0.52Ct Dijon Yellow Beryl, Pear Shape, Vs

0.52Ct Dijon Yellow Beryl, Pear Shape, Vs

7 x 5 mm (calibrated)

$ 14.98

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0.16Ct Warm Reddish Grey Color-Change Sapphire, Square, Vvs

0.16Ct Warm Reddish Grey Color-Change Sapphire, Square, Vvs

2.9 x 3 mm

$ 16.00

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0.56Ctw Light Brown Diamond, Round, Vs-Si
Diamond Product Video (700078)

0.56Ctw Light Brown Diamond, Round, Vs-Si

4.3 mm

$ 897.86

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1.88Ct Purple-Red Sapphire, Oval, Vs-Si
Sapphire Product Video (746901)

1.88Ct Purple-Red Sapphire, Oval, Vs-Si

7.8 x 6.8 mm

$ 752.00

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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 28.80

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17.40Ct Yellow Green Cat's Eye Aquamarine, Oval, Transparent
Cat's Eye Aquamarine Product Video (382732)

17.40Ct Yellow Green Cat's Eye Aquamarine, Oval, Transparent

19.9 x 11.5 mm

$ 368.41

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1.61Ct Medium Light-Yellow Beryl, Round, Vvs-Vs

1.61Ct Medium Light-Yellow Beryl, Round, Vvs-Vs

8 mm (calibrated)

$ 38.64

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1.15Ct Reddish Purple Spinel, Cushion, Vvs-Vs

1.15Ct Reddish Purple Spinel, Cushion, Vvs-Vs

6.7 x 5.5 mm

$ 165.60

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0.40Ct Medium Light-Pink Morganite, Round, Vs

0.40Ct Medium Light-Pink Morganite, Round, Vs

5 mm (calibrated)

$ 21.60

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0.76Ct Sangria Spinel, Oval, Vvs

0.76Ct Sangria Spinel, Oval, Vvs

6.1 x 4.7 mm

$ 85.75

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0.07Ct H Diamond, Marquise, Vvs

0.07Ct H Diamond, Marquise, Vvs

4 x 2 mm (calibrated)

$ 293.12

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0.67Ct Light Pinkish Purple Spinel, Oval, Vvs-Vs

0.67Ct Light Pinkish Purple Spinel, Oval, Vvs-Vs

5.7 x 5.1 mm

$ 67.00

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0.98Ct Earthy Yellow Beryl, Trillion, Vs

0.98Ct Earthy Yellow Beryl, Trillion, Vs

7 x 7 mm (calibrated)

$ 28.22

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0.30Ct Very Light Pink Morganite, Round, Vs

0.30Ct Very Light Pink Morganite, Round, Vs

4.5 mm (calibrated)

$ 15.00

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0.10Ctw Black Diamond, Round, Opaque

0.10Ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 96.00

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0.58Ct Medium Pink Spinel, Cushion, Vs

0.58Ct Medium Pink Spinel, Cushion, Vs

5.2 x 4.8 mm

$ 58.00

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1.99Ct Light Yellow Golden Beryl, Oval, Vvs-Vs

1.99Ct Light Yellow Golden Beryl, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 65.68

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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

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

Posted By KT in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

Posted By Geof in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very neat and to the point

Posted By Botha in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well

Posted By Marti in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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