X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

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
Single
Pairs
Lots
Faceted
Cabochons
Clear All
3.08Ctw Light Gold Golden Beryl, Oval, Vs

3.08Ctw Light Gold Golden Beryl, Oval, Vs

9 x 7 mm (calibrated)

$ 89.45

View Details
0.99Ct Golden Orange Beryl, Oval, Vs

0.99Ct Golden Orange Beryl, Oval, Vs

8 x 6 mm (calibrated)

$ 22.77

View Details
0.92Ct Light Honey Yellow Beryl, Oval, Vs

0.92Ct Light Honey Yellow Beryl, Oval, Vs

8 x 6 mm (calibrated)

$ 27.60

View Details
0.88Ct Tuscany Yellow Beryl, Trillion, Vvs

0.88Ct Tuscany Yellow Beryl, Trillion, Vvs

7 x 7 mm (calibrated)

$ 21.12

View Details
1.06Ct Deep Purple Spinel, Pear Shape, Vvs

1.06Ct Deep Purple Spinel, Pear Shape, Vvs

7.1 x 5.3 mm

$ 146.92

View Details
1.00Ct Pale-Greenish Grey Cat's Eye Alexandrite, Oval, Opaque

1.00Ct Pale-Greenish Grey Cat's Eye Alexandrite, Oval, Opaque

5.6 x 4.4 mm

$ 250.00

View Details
7.80Ct Light Pink Morganite, Oval, Transparent

7.80Ct Light Pink Morganite, Oval, Transparent

14.8 x 10.9 mm

$ 102.96

View Details
0.90Ct Medium Violet Spinel, Cushion, Vs

0.90Ct Medium Violet Spinel, Cushion, Vs

6.5 x 5.6 mm

$ 54.49

View Details
3.08Ctw White Topaz, Cushion, Vvs-Vs

3.08Ctw White Topaz, Cushion, Vvs-Vs

4.6 x 4.6 mm

$ 20.33

View Details
5.36Ct Clear White Topaz, Oval, Vvs

5.36Ct Clear White Topaz, Oval, Vvs

12 x 9.2 mm

$ 42.46

View Details
6.70Ctw Black Spinel, Round, Opaque

6.70Ctw Black Spinel, Round, Opaque

9 mm (calibrated)

$ 35.38

View Details
1.02Ct Deep Magenta Spinel, Oval, Vs
Spinel Product Video (752652)

1.02Ct Deep Magenta Spinel, Oval, Vs

6.5 x 5 mm

$ 612.00

View Details
0.70Ct Grey-Purple Spinel, Cushion, Vs

0.70Ct Grey-Purple Spinel, Cushion, Vs

5.3 x 4.6 mm

$ 58.80

View Details
1.26Ct Grape Purple Spinel, Cushion, Vs

1.26Ct Grape Purple Spinel, Cushion, Vs

6.4 x 5.9 mm

$ 114.44

View Details
0.18Ct Pale Yellow Diamond, Round, Vs
Diamond Product Video (543901)

0.18Ct Pale Yellow Diamond, Round, Vs

3.5 mm (calibrated)

$ 391.22

View Details
6.12Ctw White Topaz, Oval, Vvs-Vs

6.12Ctw White Topaz, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 40.39

View Details
1.62Ct Warm Yellow Beryl, Oval, Vvs-Vs

1.62Ct Warm Yellow Beryl, Oval, Vvs-Vs

9 x 7 mm (calibrated)

$ 48.60

View Details
1.30Ct Light Pink Morganite, Oval, Vs

1.30Ct Light Pink Morganite, Oval, Vs

8.7 x 6.6 mm

$ 120.12

View Details
2.97Ctw Clear White Topaz, Cushion, Vvs-Vs

2.97Ctw Clear White Topaz, Cushion, Vvs-Vs

4.6 x 4.5 mm

$ 19.61

View Details
1.18Ct Medium-Light Pink Morganite, Pear Shape, Vvs-Vs

1.18Ct Medium-Light Pink Morganite, Pear Shape, Vvs-Vs

10.8 x 6 mm

$ 155.76

View Details
0.15Ctw I Diamond, Round, Vvs-Vs

0.15Ctw I Diamond, Round, Vvs-Vs

2.7 mm (calibrated)

$ 328.36

View Details
0.99Ct Gold Beryl, Oval, Vvs

0.99Ct Gold Beryl, Oval, Vvs

8 x 6 mm (calibrated)

$ 29.70

View Details
4.58Ct Coral Pink Morganite, Round, Transparent

4.58Ct Coral Pink Morganite, Round, Transparent

10 mm (calibrated)

$ 60.46

View Details
0.23Ct Black Diamond, Square, Opaque
Diamond Product Video (678013)

0.23Ct Black Diamond, Square, Opaque

2.9 x 2.9 mm

$ 138.00

View Details
1 2 3
...
169
Choose Page
1 - 186

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

Love how easy the site is to use. Really love that the pictures are of actual product.

Posted By LeAnn in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 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 -> 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
→ View All GemSelect Reviews on Bizrate
Enlarged Gemstone Image