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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
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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0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 12.37

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0.53Ct Rose Pink Spinel, Round, Vs

0.53Ct Rose Pink Spinel, Round, Vs

5 mm (calibrated)

$ 47.70

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2.61Ctw White Topaz, Cushion, Vvs-Vs

2.61Ctw White Topaz, Cushion, Vvs-Vs

4.5 x 4.5 mm

$ 17.23

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5.97Ct Clear White Topaz, Cushion, Vs
Topaz Product Video (752110)

5.97Ct Clear White Topaz, Cushion, Vs

12 x 10 mm (calibrated)

$ 47.76

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0.05Ct Black Diamond, Round, Opaque

0.05Ct Black Diamond, Round, Opaque

2.2 mm (calibrated)

$ 19.62

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2.02Ctw Multicolor Andalusite, Round, Vs

2.02Ctw Multicolor Andalusite, Round, Vs

3.5 mm (calibrated)

$ 130.02

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1.33Ct Medium-Light Purple Spinel, Cushion, Vs

1.33Ct Medium-Light Purple Spinel, Cushion, Vs

6.5 x 6.2 mm

$ 60.45

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3.40Ctw White Topaz, Marquise, Vs

3.40Ctw White Topaz, Marquise, Vs

11.9 x 5 mm

$ 22.44

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0.35Ctw Black Diamond, Square, Opaque
Diamond Product Video (678053)

0.35Ctw Black Diamond, Square, Opaque

2.8 x 2.6 mm

$ 210.00

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5.58Ct White Topaz, Oval, Vvs

5.58Ct White Topaz, Oval, Vvs

13 x 9 mm (calibrated)

$ 44.20

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0.14Ctw Black Diamond, Square, Opaque

0.14Ctw Black Diamond, Square, Opaque

2 x 2 mm (calibrated)

$ 84.00

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1.02Ct Dark Purple Spinel, Oval, Vvs-Vs

1.02Ct Dark Purple Spinel, Oval, Vvs-Vs

7 x 5 mm (calibrated)

$ 126.60

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1.01Ct Light Yellow Beryl, Trillion, Vvs

1.01Ct Light Yellow Beryl, Trillion, Vvs

7.5 x 7.1 mm

$ 24.24

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1.58Ct Light Pinkish Purple Spinel, Cushion, Vvs

1.58Ct Light Pinkish Purple Spinel, Cushion, Vvs

6.6 x 6 mm

$ 130.14

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0.98Ct Light Golden Morganite, Pear Shape, Vvs-Vs

0.98Ct Light Golden Morganite, Pear Shape, Vvs-Vs

8 x 6 mm (calibrated)

$ 71.15

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1.67Ct White Topaz, Marquise, Vs

1.67Ct White Topaz, Marquise, Vs

12 x 4.9 mm

$ 11.03

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0.61Ct Light Gold Beryl, Oval, Vs

0.61Ct Light Gold Beryl, Oval, Vs

7 x 5 mm (calibrated)

$ 14.03

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0.53Ct Medium Green Cat's Eye Alexandrite, Oval, Opaque

0.53Ct Medium Green Cat's Eye Alexandrite, Oval, Opaque

4.8 x 4.5 mm

$ 132.50

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0.19Ct L Diamond, Round, Vvs-Vs

0.19Ct L Diamond, Round, Vvs-Vs

3.5 mm (calibrated)

$ 384.34

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5.33Ct Coral Pink Morganite, Trillion, Transparent

5.33Ct Coral Pink Morganite, Trillion, Transparent

12 x 12 mm (calibrated)

$ 70.36

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2.14Ctw Multicolor Andalusite, Round, Vs

2.14Ctw Multicolor Andalusite, Round, Vs

4 mm (calibrated)

$ 127.12

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1.23Ct Light Pink Morganite, Round, Vs

1.23Ct Light Pink Morganite, Round, Vs

7 mm (calibrated)

$ 113.65

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0.83Ct Light Golden Morganite, Pear Shape, Vvs

0.83Ct Light Golden Morganite, Pear Shape, Vvs

7.7 x 5.7 mm

$ 43.82

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1.34Ct Light Gold Beryl, Oval, Vvs-Vs

1.34Ct Light Gold Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 32.16

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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

So far So good

Posted By VH-1 in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I feel Gemselect is a trustworthy company to buy from

Posted By Becky in October, 2025
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

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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