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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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1.60ct White Morganite, Oval, VVS-VS

1.60ct White Morganite, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 122.71

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1.11ct Purple Spinel, Cushion, VVS-VS

1.11ct Purple Spinel, Cushion, VVS-VS

6.6 x 5.4 mm

$ 60.86

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0.29ct Pink Morganite, Round, VS

0.29ct Pink Morganite, Round, VS

4.5 mm (calibrated)

$ 12.04

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2.09ctw Yellow Golden Beryl, Oval, VS

2.09ctw Yellow Golden Beryl, Oval, VS

8 x 6 mm (calibrated)

$ 57.25

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1.56ct Yellow Beryl, Oval, VVS

1.56ct Yellow Beryl, Oval, VVS

9 x 7 mm (calibrated)

$ 31.08

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1.53ct White Topaz, Marquise, VS

1.53ct White Topaz, Marquise, VS

11.9 x 5 mm

$ 8.38

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1.45ct Purple Spinel, Cushion, VS

1.45ct Purple Spinel, Cushion, VS

6.6 x 6.3 mm

$ 104.08

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12.29ctw Black Spinel, Round, Opaque

12.29ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 38.24

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0.03ct Black Diamond, Round, Opaque

0.03ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 10.27

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6.80ct Blue Aquamarine, Trillion, Translucent

6.80ct Blue Aquamarine, Trillion, Translucent

12.8 x 12.2 mm

$ 141.10

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1.08ct Yellow Morganite, Oval, VS

1.08ct Yellow Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 59.16

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1.10ct Yellow Beryl, Oval, VVS-VS

1.10ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 21.91

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0.95ct Yellow Morganite, Pear Shape, VS

0.95ct Yellow Morganite, Pear Shape, VS

8 x 6 mm (calibrated)

$ 41.63

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1.78ct Yellow Beryl, Round, VVS-VS

1.78ct Yellow Beryl, Round, VVS-VS

8 mm (calibrated)

$ 42.55

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1.98ct Yellow Beryl, Round, VVS-VS

1.98ct Yellow Beryl, Round, VVS-VS

9 mm (calibrated)

$ 47.33

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1.00ct Pink Morganite, Oval, VS

1.00ct Pink Morganite, Oval, VS

7.3 x 5.8 mm

$ 43.82

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1.20ct Pink Morganite, Oval, VS

1.20ct Pink Morganite, Oval, VS

8 x 6.3 mm

$ 92.03

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0.39ct Purple Spinel, Cushion, VS

0.39ct Purple Spinel, Cushion, VS

4.7 x 3.7 mm

$ 27.19

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0.85ct Yellow Morganite, Oval, VS

0.85ct Yellow Morganite, Oval, VS

7.8 x 5.8 mm

$ 37.25

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0.20ct Black Diamond, Round, Opaque

0.20ct Black Diamond, Round, Opaque

3.5 mm (calibrated)

$ 95.15

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1.03ct Pink Morganite, Pear Shape, VS

1.03ct Pink Morganite, Pear Shape, VS

10.2 x 5.7 mm

$ 102.59

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0.94ct Yellow Beryl, Trillion, VVS-VS

0.94ct Yellow Beryl, Trillion, VVS-VS

7 x 7 mm (calibrated)

$ 18.72

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0.03ct Black Diamond, Round, Opaque

0.03ct Black Diamond, Round, Opaque

2.1 mm (calibrated)

$ 23.90

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14.55ctw Black Spinel, Cushion, Opaque

14.55ctw Black Spinel, Cushion, Opaque

12 x 10 mm (calibrated)

$ 79.71

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

GemSelect is always my first choice for purchasing gemstones. The fact that the gems are always exactly as described and pictured on the website has earned my trust many times over. Even when I don't buy, I still love browsing all the beautiful stones. My new favorites are the bright green Tsavorites!

Posted By Lkcisneros in March, 2026
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 -> 9 star ratings

Plan on purchasing on an ongoing basis. So far.....so good....

Posted By Jim in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

It was all good

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.

Posted By Guero in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.

Posted By Debsarabs in February, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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