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
2.39Ctw Multicolor Andalusite, Round, Vs-Si

2.39Ctw Multicolor Andalusite, Round, Vs-Si

4 mm (calibrated)

$ 141.97

View Details
21.22Ctw Black Spinel, Oval, Opaque

21.22Ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 84.04

View Details
3.63Ctw Medium Yellow Beryl, Oval, Vvs

3.63Ctw Medium Yellow Beryl, Oval, Vvs

10 x 8 mm (calibrated)

$ 104.54

View Details
1.07Ct Yellow Green Chrysoberyl, Oval, Vvs
Chrysoberyl Product Video (367065)

1.07Ct Yellow Green Chrysoberyl, Oval, Vvs

7 x 5 mm (calibrated)

$ 149.17

View Details
0.33Ct Light Laguna Yellow Chrysoberyl Cat's Eye, Oval, Translucent

0.33Ct Light Laguna Yellow Chrysoberyl Cat's Eye, Oval, Translucent

4.5 x 3.3 mm

$ 11.88

View Details
7.09Ctw Clear White Topaz, Oval, Vvs-Vs

7.09Ctw Clear White Topaz, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 56.15

View Details
0.99Ct Light Pink Morganite, Oval, Vvs

0.99Ct Light Pink Morganite, Oval, Vvs

7.7 x 5.7 mm

$ 47.52

View Details
0.03Ct Black Diamond, Round, Opaque

0.03Ct Black Diamond, Round, Opaque

2 mm (calibrated)

$ 28.80

View Details
1.25Ct Medium Yellow Beryl, Trillion, Vvs-Vs

1.25Ct Medium Yellow Beryl, Trillion, Vvs-Vs

8 x 8 mm (calibrated)

$ 36.00

View Details
1.76Ct Medium Dark-Purple Spinel, Cushion, Vvs-Vs
Spinel Product Video (743671)

1.76Ct Medium Dark-Purple Spinel, Cushion, Vvs-Vs

7.2 x 6.4 mm

$ 211.20

View Details
3.86Ct Light Rose Pink Morganite, Marquise, Transparent

3.86Ct Light Rose Pink Morganite, Marquise, Transparent

16 x 8 mm (calibrated)

$ 50.95

View Details
0.75Ct Light Orange Morganite, Pear Shape, Vvs-Vs

0.75Ct Light Orange Morganite, Pear Shape, Vvs-Vs

7.8 x 5.7 mm

$ 39.60

View Details
1.56Ct Light Yellow Golden Beryl, Round, Vs

1.56Ct Light Yellow Golden Beryl, Round, Vs

8 mm (calibrated)

$ 41.18

View Details
0.45Ct Yellowish Green Chrysoberyl Cat's Eye, Oval, Translucent

0.45Ct Yellowish Green Chrysoberyl Cat's Eye, Oval, Translucent

5 x 4 mm (calibrated)

$ 16.20

View Details
0.66Ct Light Golden Morganite, Pear Shape, Vs

0.66Ct Light Golden Morganite, Pear Shape, Vs

7.8 x 5.7 mm

$ 34.85

View Details
1.47Ct Medium-Light Yellow Beryl, Trillion, Vvs

1.47Ct Medium-Light Yellow Beryl, Trillion, Vvs

8 x 8 mm (calibrated)

$ 38.81

View Details
1.33Ct Earthy Yellow Beryl, Trillion, Vs

1.33Ct Earthy Yellow Beryl, Trillion, Vs

8 x 8 mm (calibrated)

$ 38.30

View Details
0.82Ct Flamingo Pink Morganite, Oval, Vvs-Vs

0.82Ct Flamingo Pink Morganite, Oval, Vvs-Vs

8 x 5.2 mm

$ 86.59

View Details
5.08Ct Light Pink Morganite, Pear Shape, Transparent

5.08Ct Light Pink Morganite, Pear Shape, Transparent

14 x 10 mm (calibrated)

$ 67.06

View Details
2.33Ct Deep Yellow Beryl, Oval, Vvs

2.33Ct Deep Yellow Beryl, Oval, Vvs

10 x 8 mm (calibrated)

$ 67.10

View Details
1.33Ct Light Gold Beryl, Oval, Vvs

1.33Ct Light Gold Beryl, Oval, Vvs

9 x 7 mm (calibrated)

$ 31.92

View Details
8.04Ct Light Pink Morganite, Pear Shape, Translucent

8.04Ct Light Pink Morganite, Pear Shape, Translucent

19.7 x 11.8 mm

$ 106.13

View Details
1.04Ct Medium Purple Spinel, Oval, Vs

1.04Ct Medium Purple Spinel, Oval, Vs

7.4 x 5.5 mm

$ 88.30

View Details
7.88Ct Light Grey Star Sapphire, Oval, Opaque
Star Sapphire Product Video (470841)

7.88Ct Light Grey Star Sapphire, Oval, Opaque

10.6 x 10.2 mm

$ 364.06

View Details
1 2 3
...
53
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 -> 9 star ratings

I think therea's no problem

Posted By Napoleon in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Nothing bad to report. Everything is as expected. The gems and the price are all very good.

Posted By Dafanatic in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good

Posted By Niska in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Web site is very simple to navigate Selection is terrific

Posted By ToRa.62 in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I feel Gemselect is a trustworthy company to buy from

Posted By Becky in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
Enlarged Gemstone Image