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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
Bi-color Natural Untreated Gemstones
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Gray Natural Untreated Gemstones
Green Natural Untreated Gemstones
Multicolor Natural Untreated Gemstones
Orange Natural Untreated Gemstones
Pink Natural Untreated Gemstones
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Red Natural Untreated Gemstones
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Violet Natural Untreated Gemstones
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Yellow Natural Untreated Gemstones
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1.39ct Green Chrysoberyl, Pear Shape, VVS-VS
Chrysoberyl Product Video (366486)

1.39ct Green Chrysoberyl, Pear Shape, VVS-VS

8.6 x 5.9 mm

$ 161.99

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2.53ct Yellow Golden Beryl, Oval, VVS

2.53ct Yellow Golden Beryl, Oval, VVS

10 x 8 mm (calibrated)

$ 69.31

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1.05ct Yellow Morganite, Cushion, VS

1.05ct Yellow Morganite, Cushion, VS

6 x 6 mm (calibrated)

$ 63.28

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3.66ctw Multicolor Andalusite, Round, VS

3.66ctw Multicolor Andalusite, Round, VS

3.7 mm

$ 160.75

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5.81ct Pink Morganite, Pear Shape, Transparent

5.81ct Pink Morganite, Pear Shape, Transparent

14 x 10 mm (calibrated)

$ 53.05

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0.14ctw White Diamond, Round, VVS-VS

0.14ctw White Diamond, Round, VVS-VS

2.6 mm (calibrated)

$ 254.36

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0.56ctw White Diamond, Heart, VVS
Diamond Product Video (685657)

0.56ctw White Diamond, Heart, VVS

3 x 2.6 mm

$ 1,901.30

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1.19ct Purple Sapphire, Pear Shape, VS-SI
Sapphire Product Video (447865)

1.19ct Purple Sapphire, Pear Shape, VS-SI

7.8 x 5.8 mm

$ 475.42

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9.29ctw Pink Morganite, Round, Translucent

9.29ctw Pink Morganite, Round, Translucent

10 mm (calibrated)

$ 101.78

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3.11ctw Multicolor Andalusite, Round, VS

3.11ctw Multicolor Andalusite, Round, VS

3.3 mm

$ 136.73

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1.07ct Yellow Chrysoberyl, Oval, VVS-VS
Chrysoberyl Product Video (366376)

1.07ct Yellow Chrysoberyl, Oval, VVS-VS

7.4 x 5.5 mm

$ 124.77

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6.49ct Pink Morganite, Oval, Transparent

6.49ct Pink Morganite, Oval, Transparent

14 x 10 mm (calibrated)

$ 64.64

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0.25ct Yellow Diamond, Round, VS-SI
Diamond Product Video (564633)

0.25ct Yellow Diamond, Round, VS-SI

4 mm (calibrated)

$ 380.34

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0.89ct Yellow Morganite, Cushion, VS

0.89ct Yellow Morganite, Cushion, VS

6 x 6 mm (calibrated)

$ 48.75

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0.14ct Black Diamond, Square, Opaque

0.14ct Black Diamond, Square, Opaque

2.6 x 2.4 mm

$ 69.72

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19.30ct Pink Morganite, Round, VVS-VS
Morganite Product Video (594878)

19.30ct Pink Morganite, Round, VVS-VS

17 mm (calibrated)

$ 3,171.76

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0.21ctw White Diamond, Round, VVS-VS
Diamond Product Video (565089)

0.21ctw White Diamond, Round, VVS-VS

3 mm (calibrated)

$ 381.55

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0.18ct Brown Diamond, Round, VVS-VS
Diamond Product Video (564626)

0.18ct Brown Diamond, Round, VVS-VS

3.7 mm

$ 328.60

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0.12ct Black Diamond, Square, Opaque
Diamond Product Video (677850)

0.12ct Black Diamond, Square, Opaque

2.5 x 2.4 mm

$ 50.42

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1.08ct Purple Spinel, Pear Shape, VS

1.08ct Purple Spinel, Pear Shape, VS

8.2 x 5.5 mm

$ 100.90

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1.17ct Purple Spinel, Pear Shape, VS-SI

1.17ct Purple Spinel, Pear Shape, VS-SI

7.5 x 5.9 mm

$ 134.60

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0.17ct Yellow Diamond, Round, VS
Diamond Product Video (564607)

0.17ct Yellow Diamond, Round, VS

3.5 mm (calibrated)

$ 282.13

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2.66ct Yellow Golden Beryl, Round, VVS

2.66ct Yellow Golden Beryl, Round, VVS

9 mm (calibrated)

$ 64.11

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0.99ct Yellow Chrysoberyl, Pear Shape, VS

0.99ct Yellow Chrysoberyl, Pear Shape, VS

8 x 6 mm (calibrated)

$ 96.15

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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

I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.

Posted By Tim W in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy picking, fast checkout, secure shipping. Cana't ask for anything more than efficiency and a good price.

Posted By Beman in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to navigate

Posted By GemGod in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Ita's a pretty good and simple way to find gems that youa're looking for amazing selection

Posted By Amman in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great prices!!! High quality gemstones.

Posted By Ricky in October, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Very good and simple exchange

Posted By Waylon in March, 2026
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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