X
Gemstone Search
90,000+ Happy Customers
20+ Years In Business
Call Us Mon–Fri 8am–5pm

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
4.62ct Yellow Rutile Topaz, Trillion, Transparent

4.62ct Yellow Rutile Topaz, Trillion, Transparent

10.9 x 10.4 mm

$ 95.87

View Gem
1.23ct Pink Morganite, Oval, VS

1.23ct Pink Morganite, Oval, VS

8 x 6 mm (calibrated)

$ 73.50

View Gem
1.09ct Pink Morganite, Pear Shape, VVS-VS

1.09ct Pink Morganite, Pear Shape, VVS-VS

10.9 x 5.4 mm

$ 119.42

View Gem
1.48ct Yellow Beryl, Oval, VS

1.48ct Yellow Beryl, Oval, VS

9 x 7 mm (calibrated)

$ 29.48

View Gem
4.55ct White Topaz, Oval, VVS-VS

4.55ct White Topaz, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 29.91

View Gem
1.62ctw Multicolor Andalusite, Oval, VS

1.62ctw Multicolor Andalusite, Oval, VS

5 x 3 mm (calibrated)

$ 86.54

View Gem
3.00ctw Multicolor Andalusite, Oval, VS-SI

3.00ctw Multicolor Andalusite, Oval, VS-SI

5.5 x 3.7 mm

$ 134.46

View Gem
0.86ct Yellow Morganite, Pear Shape, VS

0.86ct Yellow Morganite, Pear Shape, VS

8 x 6 mm (calibrated)

$ 37.69

View Gem
3.50ctw Multicolor Andalusite, Round, VS

3.50ctw Multicolor Andalusite, Round, VS

3.2 mm

$ 128.11

View Gem
4.49ct Pink Morganite, Pear Shape, Transparent

4.49ct Pink Morganite, Pear Shape, Transparent

15.1 x 9.1 mm

$ 49.19

View Gem
14.18ctw Black Spinel, Round, Opaque

14.18ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 46.60

View Gem
8.96ct Blue Aquamarine, Pear Shape, Translucent

8.96ct Blue Aquamarine, Pear Shape, Translucent

19.6 x 11.5 mm

$ 185.92

View Gem
0.88ct Purple Spinel, Cushion, VS

0.88ct Purple Spinel, Cushion, VS

5.4 x 5.3 mm

$ 31.47

View Gem
1.44ct Yellow Beryl, Oval, VS

1.44ct Yellow Beryl, Oval, VS

9 x 7 mm (calibrated)

$ 28.68

View Gem
0.68ct Purple Spinel, Cushion, VVS-VS

0.68ct Purple Spinel, Cushion, VVS-VS

5 x 5 mm (calibrated)

$ 47.41

View Gem
1.19ct Yellow Beryl, Trillion, VVS-VS

1.19ct Yellow Beryl, Trillion, VVS-VS

8 x 8 mm (calibrated)

$ 23.70

View Gem
1.30ct Purple Spinel, Cushion, VS

1.30ct Purple Spinel, Cushion, VS

6.3 x 5.9 mm

$ 99.70

View Gem
1.38ct Pink Morganite, Pear Shape, VS

1.38ct Pink Morganite, Pear Shape, VS

10 x 6.2 mm

$ 105.83

View Gem
1.06ct Yellow Morganite, Oval, VVS-VS

1.06ct Yellow Morganite, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 41.72

View Gem
1.48ct Purple Sapphire, Pear Shape, VS
Sapphire Product Video (447866)

1.48ct Purple Sapphire, Pear Shape, VS

8.5 x 6.3 mm

$ 780.48

View Gem
5.54ct Pink Morganite, Oval, Transparent

5.54ct Pink Morganite, Oval, Transparent

13 x 10.2 mm

$ 55.18

View Gem
0.61ct Yellow Beryl, Pear Shape, VS

0.61ct Yellow Beryl, Pear Shape, VS

7 x 5 mm (calibrated)

$ 13.36

View Gem
0.26ct Green Chrysoberyl Cat'S Eye, Oval, Opaque

0.26ct Green Chrysoberyl Cat'S Eye, Oval, Opaque

4.6 x 3.1 mm

$ 8.23

View Gem
0.36ct Pink Morganite, Round, VS-SI

0.36ct Pink Morganite, Round, VS-SI

5 mm (calibrated)

$ 14.94

View Gem
1 2 3
...
153
Choose Page
1 - 188

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

This is the first time I have used this site. I was dissatisfied with the quality of gems and supplies elsewhere and decided to try GemSelect. They are awesome! I was thrilled to see the variety and the great web performance. There was the ability to search for information as well as gems. Things like the clarity rating system and caret weight of the gems. I have always loved making things and I have just started to make jewelry as a business. However I have never made a ring before and have always wanted to. On GemSelect I was able to find good quality gems to use in my creations. I am so glad the website is so easy to use. Thank you GemSelect.

Posted By PickyShopper in April, 2026
Source: Bizrate

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 -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

overall great

Posted By SR in April, 2026
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

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
→ View All GemSelect Reviews on Bizrate
Enlarged Gemstone Image