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Home › Gemstones › Natural Untreated Gemstones

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
Single
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0.25ct Brown Diamond, Round, VVS-VS
Diamond Product Video (564613)

0.25ct Brown Diamond, Round, VVS-VS

4 mm (calibrated)

$ 380.34

View Gem
4.13ct Pink Morganite, Oval, Transparent

4.13ct Pink Morganite, Oval, Transparent

13 x 9 mm (calibrated)

$ 41.13

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1.02ct Purple Spinel, Oval, VVS-VS

1.02ct Purple Spinel, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 105.08

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2.32ct Yellow Golden Beryl, Round, VVS

2.32ct Yellow Golden Beryl, Round, VVS

9 mm (calibrated)

$ 55.92

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2.94ctw White Topaz, Cushion, VVS-VS
Topaz Product Video (387768)

2.94ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 16.10

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4.24ctw White Topaz, Cushion, VVS-VS

4.24ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 23.22

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4.90ct Pink Morganite, Oval, Transparent

4.90ct Pink Morganite, Oval, Transparent

12 x 10 mm (calibrated)

$ 48.80

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0.70ct Yellow Beryl, Oval, VVS-VS

0.70ct Yellow Beryl, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 13.94

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1.16ct Purple Spinel, Cushion, VS

1.16ct Purple Spinel, Cushion, VS

6.4 x 5.7 mm

$ 138.64

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12.28ct Black Spinel, Baguette, Opaque

12.28ct Black Spinel, Baguette, Opaque

19.9 x 10 mm

$ 36.69

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1.98ct Yellow Beryl, Round, VVS-VS

1.98ct Yellow Beryl, Round, VVS-VS

8 mm (calibrated)

$ 43.38

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1.10ct Pink Morganite, Round, VS

1.10ct Pink Morganite, Round, VS

7 mm (calibrated)

$ 84.36

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0.33ct Pink Morganite, Round, VS-SI

0.33ct Pink Morganite, Round, VS-SI

4.8 mm

$ 13.70

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1.54ct Pink Morganite, Oval, VS

1.54ct Pink Morganite, Oval, VS

8.2 x 6.7 mm

$ 118.11

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0.12ct Green Alexandrite, Oval, VVS-VS

0.12ct Green Alexandrite, Oval, VVS-VS

3.4 x 2.5 mm

$ 83.66

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0.21ct Pink Morganite, Round, VS-SI

0.21ct Pink Morganite, Round, VS-SI

4.2 mm

$ 8.72

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0.92ct Pink Morganite, Pear Shape, VVS-VS

0.92ct Pink Morganite, Pear Shape, VVS-VS

9.4 x 5.4 mm

$ 55.44

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1.26ct Yellow Morganite, Oval, VS

1.26ct Yellow Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 55.22

View Gem
7.86ct Pink Morganite, Marquise, Transparent
Morganite Product Video (472752)

7.86ct Pink Morganite, Marquise, Transparent

21.6 x 9.1 mm

$ 90.34

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1.42ct Yellow Beryl, Oval, VVS

1.42ct Yellow Beryl, Oval, VVS

9 x 7 mm (calibrated)

$ 28.29

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3.19ctw White Topaz, Cushion, VVS-VS

3.19ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 17.48

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0.11ctw Black Diamond, Round, Opaque

0.11ctw Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 31.96

View Gem
3.06ct Yellow Rutile Topaz, Heart, Transparent

3.06ct Yellow Rutile Topaz, Heart, Transparent

9.8 x 9 mm

$ 63.50

View Gem
1.09ct Black Diamond, Square, Opaque
Diamond Product Video (677846)

1.09ct Black Diamond, Square, Opaque

4.6 x 4.4 mm

$ 620.95

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

good navigation and simple interface.

Posted By Dave in April, 2026
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

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent options

Posted By CJ in February, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

The purchasing process is fairly quick and straightforward and for me user friendly so it probably took more or less than 3 minutes to purchase and pay for the items. I wish there was a discount offer for multiple items to encourage us buyers to purchase more an incentive and add more sales in your end. Besides that, it's been a great purchasing experience and will continue to shop as I am a repeat customer and have bought from your store many times before. Thank you.

Posted By Emmanuel in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate
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