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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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3.35ctw White Topaz, Square, VVS-VS

3.35ctw White Topaz, Square, VVS-VS

3.8 x 3.7 mm

$ 25.70

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15.03ctw Black Spinel, Round, Opaque

15.03ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 49.40

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1.34ct Pink Morganite, Pear Shape, VVS
Morganite Product Video (582782)

1.34ct Pink Morganite, Pear Shape, VVS

8.1 x 6.5 mm

$ 58.72

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5.37ct Pink Morganite, Trillion, Transparent

5.37ct Pink Morganite, Trillion, Transparent

13 x 13 mm (calibrated)

$ 58.83

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0.93ct Yellow Beryl, Oval, VVS

0.93ct Yellow Beryl, Oval, VVS

8 x 6 mm (calibrated)

$ 18.53

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0.22ctw Brown Diamond, Round, VVS-VS
Diamond Product Video (564569)

0.22ctw Brown Diamond, Round, VVS-VS

3.1 mm

$ 401.64

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0.36ct Pink Morganite, Round, VS

0.36ct Pink Morganite, Round, VS

5.5 mm (calibrated)

$ 14.94

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0.57ct Pink Spinel, Round, VS
Spinel Product Video (754471)

0.57ct Pink Spinel, Round, VS

5 mm (calibrated)

$ 42.58

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1.96ctw Multicolor Andalusite, Round, VS

1.96ctw Multicolor Andalusite, Round, VS

3.8 mm

$ 107.37

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0.03ct Black Diamond, Round, Opaque

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 23.90

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2.27ctw Multicolor Andalusite, Round, VS-SI
Andalusite Product Video (206015)

2.27ctw Multicolor Andalusite, Round, VS-SI

4 mm (calibrated)

$ 111.92

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0.03ct White Diamond, Round, VVS

0.03ct White Diamond, Round, VVS

2 mm (calibrated)

$ 68.48

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1.01ct Pink Morganite, Pear Shape, VS

1.01ct Pink Morganite, Pear Shape, VS

8.7 x 5.5 mm

$ 110.66

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5.94ct White Topaz, Oval, VS

5.94ct White Topaz, Oval, VS

12 x 10 mm (calibrated)

$ 39.44

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1.93ct Pink Morganite, Trillion, Transparent

1.93ct Pink Morganite, Trillion, Transparent

8.4 x 8 mm

$ 21.15

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0.19ctw White Diamond, Round, VVS-VS

0.19ctw White Diamond, Round, VVS-VS

2.9 mm (calibrated)

$ 283.05

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7.80ct Pink Morganite, Oval, Transparent

7.80ct Pink Morganite, Oval, Transparent

14.8 x 10.9 mm

$ 85.46

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1.38ct Yellow Beryl, Oval, VVS-VS

1.38ct Yellow Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 26.34

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1.17ct Yellow Beryl, Round, VVS-VS

1.17ct Yellow Beryl, Round, VVS-VS

7 mm (calibrated)

$ 23.31

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2.39ct Yellow Beryl, Oval, VVS-VS

2.39ct Yellow Beryl, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 47.61

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4.23ctw Multicolor Andalusite, Round, VS-SI
Andalusite Product Video (310832)

4.23ctw Multicolor Andalusite, Round, VS-SI

4 mm (calibrated)

$ 208.55

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3.61ctw Multicolor Andalusite, Oval, VS-SI

3.61ctw Multicolor Andalusite, Oval, VS-SI

6 x 4 mm (calibrated)

$ 177.99

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1.23ct Purple Spinel, Oval, VVS-VS

1.23ct Purple Spinel, Oval, VVS-VS

7.3 x 6 mm

$ 141.50

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1.23ct Purple Sapphire, Pear Shape, VVS-VS
Sapphire Product Video (448510)

1.23ct Purple Sapphire, Pear Shape, VVS-VS

8.4 x 5.6 mm

$ 649.54

View Gem
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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

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very pleasant

Posted By Varun in June, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great website, easy to navigate, and loads quickly. Have bought here before, very pleased!

Posted By SallyO in February, 2026
Source: Bizrate

Overall Rating -> 8 star ratings

I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.

Posted By Meyeusername in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It's always a pleasure doing business with Gem Select. Outstanding products ant very reasonable prices. Thank You One and All.

Posted By G.W. or Bakyow in July, 2025
Source: Bizrate
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