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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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4.50Ct Medium Pink Morganite, Oval, Transparent

4.50Ct Medium Pink Morganite, Oval, Transparent

13 x 9 mm (calibrated)

$ 59.40

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1.26Ct Dark Purple Spinel, Cushion, Vvs

1.26Ct Dark Purple Spinel, Cushion, Vvs

6.4 x 6.3 mm

$ 82.56

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1.35Ct Light Golden-Yellow Beryl, Oval, Vvs

1.35Ct Light Golden-Yellow Beryl, Oval, Vvs

8.8 x 6.6 mm

$ 32.40

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0.64Ct Medium Pink Spinel, Cushion, Vvs-Vs

0.64Ct Medium Pink Spinel, Cushion, Vvs-Vs

5.2 x 4.6 mm

$ 53.76

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3.22Ct Flamingo Pink Morganite, Pear Shape, Transparent

3.22Ct Flamingo Pink Morganite, Pear Shape, Transparent

13 x 9 mm (calibrated)

$ 42.50

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3.57Ctw Multicolor Andalusite, Round, Vs

3.57Ctw Multicolor Andalusite, Round, Vs

3.2 mm

$ 189.11

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1.39Ct Light Gold Beryl, Trillion, Vvs

1.39Ct Light Gold Beryl, Trillion, Vvs

8 x 8 mm (calibrated)

$ 33.36

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1.29Ct Tuscany Yellow Beryl, Oval, Vvs-Vs

1.29Ct Tuscany Yellow Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 34.06

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7.05Ct Light Blue Aquamarine, Oval, Translucent

7.05Ct Light Blue Aquamarine, Oval, Translucent

16 x 12 mm (calibrated)

$ 62.04

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13.46Ct Black Spinel, Baguette, Opaque

13.46Ct Black Spinel, Baguette, Opaque

19.8 x 10.1 mm

$ 48.46

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0.53Ct Reddish Orange Spinel, Oval, Vs

0.53Ct Reddish Orange Spinel, Oval, Vs

5.4 x 4.4 mm

$ 53.00

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0.39Ct Medium Purple Spinel, Cushion, Vs

0.39Ct Medium Purple Spinel, Cushion, Vs

4.7 x 3.7 mm

$ 32.76

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2.85Ct Light Pear Green Cat's Eye Beryl, Oval, Translucent
Cat's Eye Beryl Product Video (735067)

2.85Ct Light Pear Green Cat's Eye Beryl, Oval, Translucent

10.1 x 7.5 mm

$ 599.42

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3.54Ctw Multicolor Andalusite, Round, Vs

3.54Ctw Multicolor Andalusite, Round, Vs

3.5 mm (calibrated)

$ 187.33

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1.12Ct Medium Light-Yellow Beryl, Oval, Vvs-Vs

1.12Ct Medium Light-Yellow Beryl, Oval, Vvs-Vs

8 x 6 mm (calibrated)

$ 26.88

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14.02Ctw Black Spinel, Round, Opaque

14.02Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 55.52

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12.01Ctw Clear White Topaz, Cushion, Vs

12.01Ctw Clear White Topaz, Cushion, Vs

12 x 10 mm (calibrated)

$ 96.08

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1.60Ct Rose Pink Tone Morganite, Pear Shape, Vs

1.60Ct Rose Pink Tone Morganite, Pear Shape, Vs

10.8 x 6 mm

$ 147.84

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3.35Ctw White Topaz, Square, Vvs-Vs

3.35Ctw White Topaz, Square, Vvs-Vs

3.8 x 3.7 mm

$ 30.96

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0.67Ct Light Yellow Beryl, Oval, Vvs

0.67Ct Light Yellow Beryl, Oval, Vvs

7 x 5 mm (calibrated)

$ 16.08

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0.10Ctw Black Diamond, Round, Opaque

0.10Ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 35.00

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0.79Ct Light Pink Morganite, Oval, Vs

0.79Ct Light Pink Morganite, Oval, Vs

7.7 x 5.1 mm

$ 41.71

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0.93Ct Deep Wine Red Spinel, Pear Shape, Vs-Si
Spinel Product Video (749008)

0.93Ct Deep Wine Red Spinel, Pear Shape, Vs-Si

8.6 x 5.6 mm

$ 232.50

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0.48Ct Purple Pink Spinel, Cushion, Vvs-Vs

0.48Ct Purple Pink Spinel, Cushion, Vvs-Vs

5.2 x 4 mm

$ 40.32

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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

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

The website has a good selection, the interface is very intuitive.

Posted By PhoenixFeatherJewelry in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.

Posted By Sal in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the products. I've bought them as gifts and people love my gifts

Posted By Love it! in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

good navigation and simple interface.

Posted By Dave in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

All good

Posted By DouscheGift in August, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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