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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
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Orange Natural Untreated Gemstones
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Yellow Natural Untreated Gemstones
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26.57Ctw Black Spinel, Baguette, Opaque

26.57Ctw Black Spinel, Baguette, Opaque

20.2 x 10.2 mm

$ 95.65

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0.58Ct Very Light Pink Morganite, Pear Shape, Vvs

0.58Ct Very Light Pink Morganite, Pear Shape, Vvs

7.8 x 4.8 mm

$ 42.11

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0.67Ct Medium Dark-Purple Spinel, Oval, Vvs-Vs

0.67Ct Medium Dark-Purple Spinel, Oval, Vvs-Vs

5.7 x 4.8 mm

$ 67.00

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2.19Ctw Medium Pink Morganite, Oval, Vs

2.19Ctw Medium Pink Morganite, Oval, Vs

8 x 6 mm (calibrated)

$ 144.54

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0.34Ct Medium Light Brown Color-Change Sapphire, Emerald Cut, Vvs

0.34Ct Medium Light Brown Color-Change Sapphire, Emerald Cut, Vvs

4 x 3.4 mm

$ 34.00

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0.12Ct Light Pink Morganite, Round, Vs

0.12Ct Light Pink Morganite, Round, Vs

3.5 mm (calibrated)

$ 6.00

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1.09Ct Light Purple Spinel, Cushion, Vvs-Vs

1.09Ct Light Purple Spinel, Cushion, Vvs-Vs

6.4 x 5.5 mm

$ 88.93

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0.87Ct Dark Purple Spinel, Pear Shape, Vs

0.87Ct Dark Purple Spinel, Pear Shape, Vs

7.9 x 4.8 mm

$ 98.17

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21.70Ctw Black Spinel, Oval, Opaque

21.70Ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 85.93

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1.79Ctw White Topaz, Oval, Vvs-Vs

1.79Ctw White Topaz, Oval, Vvs-Vs

7 x 5 mm (calibrated)

$ 15.04

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2.03Ctw Light Orange Morganite, Oval, Vs

2.03Ctw Light Orange Morganite, Oval, Vs

8 x 6 mm (calibrated)

$ 147.38

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6.13Ct Clear White Topaz, Cushion, Vs

6.13Ct Clear White Topaz, Cushion, Vs

11.2 x 10.1 mm

$ 49.04

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13.01Ctw Black Spinel, Round, Opaque

13.01Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 48.78

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1.22Ct Purple-Pink Spinel, Cushion, Vvs-Vs

1.22Ct Purple-Pink Spinel, Cushion, Vvs-Vs

6 x 6 mm (calibrated)

$ 101.46

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1.38Ct Salmon Pink Morganite, Oval, Vs

1.38Ct Salmon Pink Morganite, Oval, Vs

8 x 6 mm (calibrated)

$ 127.51

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1.17Ct Light Pink Morganite, Pear Shape, Vs

1.17Ct Light Pink Morganite, Pear Shape, Vs

8 x 6 mm (calibrated)

$ 123.55

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0.07Ct D Diamond, Marquise, Vvs
Diamond Product Video (740676)

0.07Ct D Diamond, Marquise, Vvs

4.2 x 2.1 mm

$ 293.12

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1.80Ct Very Light Pink Morganite, Oval, Vs

1.80Ct Very Light Pink Morganite, Oval, Vs

9.6 x 7.4 mm

$ 95.04

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0.72Ct Medium-Light Pink Morganite, Pear Shape, Vvs

0.72Ct Medium-Light Pink Morganite, Pear Shape, Vvs

9 x 4.3 mm

$ 52.27

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1.03Ct Boysenberry Purple Spinel, Cushion, Vvs-Vs

1.03Ct Boysenberry Purple Spinel, Cushion, Vvs-Vs

6.8 x 5.2 mm

$ 123.60

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1.17Ct Light Purple Spinel, Cushion, Vvs
Spinel Product Video (483671)

1.17Ct Light Purple Spinel, Cushion, Vvs

6.5 x 5.4 mm

$ 100.39

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1.45Ct Very Light Dijon Yellow Beryl, Round, Vvs

1.45Ct Very Light Dijon Yellow Beryl, Round, Vvs

8 mm (calibrated)

$ 34.80

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3.22Ctw Light Yellow Golden Beryl, Oval, Vvs-Vs

3.22Ctw Light Yellow Golden Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 85.01

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12.95Ctw Black Spinel, Round, Opaque

12.95Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 51.29

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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

overall great

Posted By SR in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

love the site, the experience and the products.

Posted By Ckingpots in July, 2025
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

Overall Rating -> 10 star ratings

Easy to use. No issues. Large selection of gems.

Posted By CLTCJH in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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