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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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1.40ct Purple Spinel, Cushion, VS

1.40ct Purple Spinel, Cushion, VS

6.4 x 5.8 mm

$ 103.53

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1.51ct Yellow Beryl, Trillion, VVS

1.51ct Yellow Beryl, Trillion, VVS

8 x 8 mm (calibrated)

$ 30.08

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0.99ct Yellow Morganite, Oval, VVS-VS

0.99ct Yellow Morganite, Oval, VVS-VS

7.9 x 5.7 mm

$ 43.38

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1.09ct Yellow Chrysoberyl, Pear Shape, VVS
Chrysoberyl Product Video (366558)

1.09ct Yellow Chrysoberyl, Pear Shape, VVS

7.9 x 5.5 mm

$ 127.02

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1.53ct White Topaz, Marquise, VS

1.53ct White Topaz, Marquise, VS

12 x 5 mm

$ 8.38

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3.54ct Blue Aquamarine, Pear Shape, Translucent

3.54ct Blue Aquamarine, Pear Shape, Translucent

15 x 10 mm (calibrated)

$ 73.46

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1.28ct Purple Spinel, Cushion, VVS
Spinel Product Video (743037)

1.28ct Purple Spinel, Cushion, VVS

6.9 x 6.1 mm

$ 212.48

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22.02ctw Black Spinel, Oval, Opaque

22.02ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 72.38

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0.64ct Pink Spinel, Cushion, VVS

0.64ct Pink Spinel, Cushion, VVS

5.2 x 4.6 mm

$ 44.62

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3.81ctw Multicolor Andalusite, Round, VS
Andalusite Product Video (382236)

3.81ctw Multicolor Andalusite, Round, VS

3 mm (calibrated)

$ 139.60

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0.64ct Purple Spinel, Round, VS

0.64ct Purple Spinel, Round, VS

5 mm (calibrated)

$ 27.51

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4.08ct White Topaz, Oval, VVS

4.08ct White Topaz, Oval, VVS

11 x 9 mm (calibrated)

$ 31.29

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5.02ct Blue Aquamarine, Oval, VS
Aquamarine Product Video (412449)

5.02ct Blue Aquamarine, Oval, VS

12.6 x 9.5 mm

$ 956.99

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0.77ct Yellow Morganite, Pear Shape, VVS-VS

0.77ct Yellow Morganite, Pear Shape, VVS-VS

7.3 x 5.4 mm

$ 33.75

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0.86ct Yellow Sapphire, Pear Shape, VS
Sapphire Product Video (752165)

0.86ct Yellow Sapphire, Pear Shape, VS

7 x 5 mm (calibrated)

$ 178.45

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1.60ct Yellow Beryl, Round, VVS

1.60ct Yellow Beryl, Round, VVS

8 mm (calibrated)

$ 31.87

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4.58ct White Topaz, Oval, VS

4.58ct White Topaz, Oval, VS

11 x 9 mm (calibrated)

$ 25.09

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7.01ctw Black Spinel, Round, Opaque

7.01ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 30.72

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4.50ct Pink Morganite, Heart, Transparent

4.50ct Pink Morganite, Heart, Transparent

14 x 14 mm (calibrated)

$ 51.73

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3.96ct Pink Morganite, Pear Shape, Transparent

3.96ct Pink Morganite, Pear Shape, Transparent

12.8 x 8.1 mm

$ 16.43

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1.34ct Yellow Beryl, Cushion, VVS

1.34ct Yellow Beryl, Cushion, VVS

8.8 x 6.5 mm

$ 32.03

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0.16ct White Diamond, Round, VS

0.16ct White Diamond, Round, VS

3.5 mm (calibrated)

$ 268.63

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1.38ct Purple Sapphire, Cushion, VS
Sapphire Product Video (448505)

1.38ct Purple Sapphire, Cushion, VS

7.5 x 5.4 mm

$ 728.76

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1.22ct Yellow Beryl, Oval, VVS-VS

1.22ct Yellow Beryl, Oval, VVS-VS

8.8 x 6.5 mm

$ 24.30

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 -> 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 -> 9 star ratings

If you have motion picture, then I will be more satisfied with.

Posted By Ray in November, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Fast and reliable service.

Posted By Zæck in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Filters need to be improved but rest of website is great

Posted By Rock hound in December, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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