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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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0.02ct Black Diamond, Round, Opaque

0.02ct Black Diamond, Round, Opaque

1.9 mm (calibrated)

$ 15.94

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3.09ct Pink Morganite, Round, Transparent

3.09ct Pink Morganite, Round, Transparent

10 mm (calibrated)

$ 33.86

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13.97ctw Black Spinel, Round, Opaque

13.97ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 45.92

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0.52ct Green Chrysoberyl Cat'S Eye, Oval, Translucent

0.52ct Green Chrysoberyl Cat'S Eye, Oval, Translucent

4.6 x 4.5 mm

$ 15.54

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0.89ct Orange Morganite, Pear Shape, VVS-VS

0.89ct Orange Morganite, Pear Shape, VVS-VS

8 x 6 mm (calibrated)

$ 39.89

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7.09ctw White Topaz, Oval, VVS-VS

7.09ctw White Topaz, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 46.60

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1.60ct Yellow Beryl, Cushion, VVS

1.60ct Yellow Beryl, Cushion, VVS

9 x 7 mm (calibrated)

$ 38.25

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1.62ct Yellow Beryl, Oval, VVS-VS

1.62ct Yellow Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 40.34

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1.79ctw White Topaz, Oval, VVS-VS

1.79ctw White Topaz, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 12.48

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1.20ct Yellow Beryl, Oval, VVS

1.20ct Yellow Beryl, Oval, VVS

8 x 6 mm (calibrated)

$ 29.88

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2.15ct Yellow Beryl, Oval, VVS-VS

2.15ct Yellow Beryl, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 42.83

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7.32ctw White Topaz, Square, VVS-VS

7.32ctw White Topaz, Square, VVS-VS

5 x 5 mm (calibrated)

$ 53.22

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0.04ct Black Diamond, Round, Opaque

0.04ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 31.87

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4.67ct Blue Aquamarine, Cushion, Translucent

4.67ct Blue Aquamarine, Cushion, Translucent

13.5 x 9 mm

$ 96.90

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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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0.97ct Pink Spinel, Oval, VS-SI
Spinel Product Video (749010)

0.97ct Pink Spinel, Oval, VS-SI

7 x 5.6 mm

$ 201.28

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1.00ct Yellow Beryl, Trillion, VVS

1.00ct Yellow Beryl, Trillion, VVS

8 x 8 mm (calibrated)

$ 19.92

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1.05ct Yellow Beryl, Emerald Cut, VVS-VS

1.05ct Yellow Beryl, Emerald Cut, VVS-VS

6.9 x 5.2 mm

$ 23.01

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1.26ctw Yellow Beryl, Oval, VVS-VS

1.26ctw Yellow Beryl, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 25.10

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0.03ct White Diamond, Round, VVS

0.03ct White Diamond, Round, VVS

2.1 mm (calibrated)

$ 68.48

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0.19ctw White Diamond, Round, VVS-VS

0.19ctw White Diamond, Round, VVS-VS

2.9 mm (calibrated)

$ 339.67

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3.92ctw Multicolor Andalusite, Round, VS
Andalusite Product Video (381797)

3.92ctw Multicolor Andalusite, Round, VS

3.7 mm

$ 143.48

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0.18ctw White Diamond, Round, VVS-VS

0.18ctw White Diamond, Round, VVS-VS

2.8 mm (calibrated)

$ 327.04

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1.02ct Yellow Morganite, Oval, VS

1.02ct Yellow Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 44.70

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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

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 -> 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 -> 9 star ratings

It was fine . Wish there had been more round stones to select from

Posted By Emm in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

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

Overall Rating -> 9 star ratings

It was great!

Posted By Annie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy process.

Posted By Crafty Seabee in March, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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