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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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1.78ct Yellow Golden Beryl, Oval, VVS-VS

1.78ct Yellow Golden Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 42.91

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12.08ctw White Topaz, Oval, VS

12.08ctw White Topaz, Oval, VS

12 x 10 mm (calibrated)

$ 80.21

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3.36ctw Yellow Golden Beryl, Oval, VS

3.36ctw Yellow Golden Beryl, Oval, VS

9 x 7 mm (calibrated)

$ 80.98

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3.25ct White Topaz, Oval, VVS-VS

3.25ct White Topaz, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 17.81

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0.13ct Black Diamond, Round, Opaque

0.13ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 61.84

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2.12ctw Multicolor Andalusite, Oval, VS

2.12ctw Multicolor Andalusite, Oval, VS

4 x 3 mm (calibrated)

$ 113.25

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0.80ct Pink Spinel, Cushion, VVS-VS

0.80ct Pink Spinel, Cushion, VVS-VS

5.8 x 5 mm

$ 39.84

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0.68ct Pink Morganite, Pear Shape, VVS

0.68ct Pink Morganite, Pear Shape, VVS

8 x 5 mm (calibrated)

$ 40.98

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1.70ct Yellow Beryl, Oval, VVS-VS

1.70ct Yellow Beryl, Oval, VVS-VS

10 x 7.6 mm

$ 42.33

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2.99ctw White Topaz, Cushion, VVS-VS

2.99ctw White Topaz, Cushion, VVS-VS

4.6 x 4.5 mm

$ 16.38

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3.22ct Yellow Rutile Topaz, Pear Shape, Transparent

3.22ct Yellow Rutile Topaz, Pear Shape, Transparent

11.4 x 8 mm

$ 66.82

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0.78ct Purple Spinel, Emerald Cut, VVS-VS

0.78ct Purple Spinel, Emerald Cut, VVS-VS

5.5 x 5.2 mm

$ 27.89

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4.43ct White Topaz, Round, VS

4.43ct White Topaz, Round, VS

9.5 mm (calibrated)

$ 20.63

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3.91ctw White Topaz, Square, VVS-VS

3.91ctw White Topaz, Square, VVS-VS

4 x 4 mm (calibrated)

$ 31.48

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11.96ctw White Topaz, Cushion, VVS-VS
Topaz Product Video (752119)

11.96ctw White Topaz, Cushion, VVS-VS

12 x 10 mm (calibrated)

$ 79.41

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1.23ct Yellow Beryl, Cushion, VS

1.23ct Yellow Beryl, Cushion, VS

8 x 6 mm (calibrated)

$ 29.40

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0.99ct Yellow Beryl, Oval, VVS

0.99ct Yellow Beryl, Oval, VVS

8 x 6 mm (calibrated)

$ 19.72

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1.57ctw Multicolor Andalusite, Oval, VS

1.57ctw Multicolor Andalusite, Oval, VS

5 x 3 mm (calibrated)

$ 83.87

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22.49ctw Black Spinel, Oval, Opaque

22.49ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 73.92

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1.02ct Pink Spinel, Oval, VS
Spinel Product Video (752652)

1.02ct Pink Spinel, Oval, VS

6.5 x 5 mm

$ 507.96

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6.39ctw White Topaz, Oval, VVS-VS

6.39ctw White Topaz, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 35.01

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0.49ct Purple Spinel, Cushion, VS

0.49ct Purple Spinel, Cushion, VS

4.9 x 4.1 mm

$ 34.16

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22.14ctw Black Spinel, Oval, Opaque

22.14ctw Black Spinel, Oval, Opaque

16 x 12 mm (calibrated)

$ 84.90

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7.89ct Pink Morganite, Pear Shape, Transparent

7.89ct Pink Morganite, Pear Shape, Transparent

16 x 12 mm (calibrated)

$ 86.99

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 -> 8 star ratings

Site worked well and helped me find a rock that matched what I was looking for. Well within budget and I trust it will show up, so that's definitely positive. Not much else to it. Satisfied.

Posted By Big Ricky in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Love, and have always loved, your website.

Posted By Aberabic in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to conduct search, good amount of stock to select from along with variety of prices.

Posted By Que in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good place to buy gemstones

Posted By Elansary in March, 2026
Source: Bizrate

Overall Rating -> 9 star ratings

I loved the selection of gemstones you have a to z

Posted By James in May, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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