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Home › Gemstones › Natural Untreated Gemstones

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
Black Natural Untreated Gemstones
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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
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Violet Natural Untreated Gemstones
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Yellow Natural Untreated Gemstones
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1.23ctw Yellow Citrine, Pear Shape, VVS-VS

1.23ctw Yellow Citrine, Pear Shape, VVS-VS

7 x 5 mm (calibrated)

$ 8.08

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6.65ctw Multicolor Ruby In Fuchsite, Marquise, Translucent

6.65ctw Multicolor Ruby In Fuchsite, Marquise, Translucent

16.9 x 7.5 mm

$ 49.10

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4.37ctw Yellow Citrine, Oval, VVS-VS

4.37ctw Yellow Citrine, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 23.95

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2.53ct Yellow Citrine, Oval, VVS-VS

2.53ct Yellow Citrine, Oval, VVS-VS

11 x 9 mm (calibrated)

$ 17.64

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1.88ct Yellow Citrine, Trillion, VVS-VS

1.88ct Yellow Citrine, Trillion, VVS-VS

9 x 9 mm (calibrated)

$ 14.43

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60.24ct Pink Kunzite, Cushion, VS
Kunzite Product Video (758640)

60.24ct Pink Kunzite, Cushion, VS

22 x 20.6 mm

$ 1,204.80

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0.75ct Orange Sphalerite, Round, VS-SI

0.75ct Orange Sphalerite, Round, VS-SI

5 mm (calibrated)

$ 37.35

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8.26ct Violet Amethyst, Pear Shape, VVS

8.26ct Violet Amethyst, Pear Shape, VVS

16.8 x 12.6 mm

$ 57.59

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1.87ct White Cat'S Eye Moonstone, Oval, Transparent

1.87ct White Cat'S Eye Moonstone, Oval, Transparent

8 x 6 mm (calibrated)

$ 6.14

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22.64ct Multicolor Jasper, Fancy, Opaque

22.64ct Multicolor Jasper, Fancy, Opaque

31.3 x 9.4 mm

$ 13.65

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12.04ct Bi-Color Ametrine, Oval, VVS

12.04ct Bi-Color Ametrine, Oval, VVS

16.2 x 13.7 mm

$ 79.14

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1.43ct Pink Tourmaline, Emerald Cut, VVS-VS

1.43ct Pink Tourmaline, Emerald Cut, VVS-VS

6.5 x 6.2 mm

$ 166.17

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13.27ct Green Maw-Sit-Sit, Round, Opaque

13.27ct Green Maw-Sit-Sit, Round, Opaque

13 mm (calibrated)

$ 30.98

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1.10ctw Orange Citrine, Marquise, VVS

1.10ctw Orange Citrine, Marquise, VVS

8.2 x 4.2 mm

$ 6.57

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0.78ct Yellow Citrine, Heart, VVS-VS

0.78ct Yellow Citrine, Heart, VVS-VS

6 x 6 mm (calibrated)

$ 5.44

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6.25ct Brown Tiger'S Eye, Baguette, Opaque

6.25ct Brown Tiger'S Eye, Baguette, Opaque

12 x 10 mm (calibrated)

$ 3.43

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3.00ctw Yellow Citrine, Heart, VVS

3.00ctw Yellow Citrine, Heart, VVS

8 x 8 mm (calibrated)

$ 20.92

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20.03ct Violet Amethyst, Emerald Cut, VVS

20.03ct Violet Amethyst, Emerald Cut, VVS

18.3 x 14.2 mm

$ 139.65

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2.11ct Orange Moonstone, Cushion, Translucent

2.11ct Orange Moonstone, Cushion, Translucent

9 x 7 mm (calibrated)

$ 4.20

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1.50ctw Red Pyrope Garnet, Square, VVS

1.50ctw Red Pyrope Garnet, Square, VVS

5 x 5 mm (calibrated)

$ 11.50

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0.74ct Yellow Beryl, Oval, VVS-VS

0.74ct Yellow Beryl, Oval, VVS-VS

7 x 5 mm (calibrated)

$ 18.43

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12.31ct Brown Smoky Quartz, Emerald Cut, VVS

12.31ct Brown Smoky Quartz, Emerald Cut, VVS

13 x 13 mm (calibrated)

$ 24.29

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2.18ctw White Rainbow Moonstone, Square, Transparent

2.18ctw White Rainbow Moonstone, Square, Transparent

3 x 3 mm (calibrated)

$ 40.60

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51.41ct Pink Rose Quartz, Oval, Transparent

51.41ct Pink Rose Quartz, Oval, Transparent

26.3 x 21.7 mm

$ 92.37

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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

Over pretty well experience the your website no complaints about it very easy reliable service provided

Posted By Blas in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

My experience was done with ease

Posted By Barb in October, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

It was a good interaction I got a good gemstone for cheap

Posted By Jon in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great prices!!! High quality gemstones.

Posted By Ricky in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The website was very easy to use.

Posted By Garnet in January, 2026
Source: Bizrate

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
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