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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

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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1.25ct Red Pyrope Garnet, Marquise, VVS-VS

1.25ct Red Pyrope Garnet, Marquise, VVS-VS

9.9 x 4.9 mm

$ 10.96

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4.70ct Pink Morganite, Trillion, Transparent

4.70ct Pink Morganite, Trillion, Transparent

11 x 11 mm (calibrated)

$ 51.49

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0.67ct Yellow Sphene, Pear Shape, VS-SI
Sphene Product Video (390432)

0.67ct Yellow Sphene, Pear Shape, VS-SI

7.3 x 5 mm

$ 27.84

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7.67ctw Orange Rutile Quartz, Round, Transparent

7.67ctw Orange Rutile Quartz, Round, Transparent

10 mm (calibrated)

$ 22.69

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1.06ct Orange Moonstone, Pear Shape, Translucent

1.06ct Orange Moonstone, Pear Shape, Translucent

9 x 6 mm (calibrated)

$ 2.12

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0.56ct Orange Sphalerite, Round, SI

0.56ct Orange Sphalerite, Round, SI

4.8 mm

$ 27.89

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22.26ctw Orange Sunstone, Oval, Transparent

22.26ctw Orange Sunstone, Oval, Transparent

12 x 10 mm (calibrated)

$ 129.33

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2.34ct Yellow Citrine, Oval, VVS-VS

2.34ct Yellow Citrine, Oval, VVS-VS

10.9 x 8.1 mm

$ 17.52

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3.35ct Pink Strawberry Quartz, Oval, Transparent

3.35ct Pink Strawberry Quartz, Oval, Transparent

11 x 9 mm (calibrated)

$ 25.13

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1.18ct Multicolor Opal, Pear Shape, Transparent

1.18ct Multicolor Opal, Pear Shape, Transparent

13.2 x 6.7 mm

$ 29.38

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2.20ctw Yellow Citrine, Square, VS

2.20ctw Yellow Citrine, Square, VS

6 x 6 mm (calibrated)

$ 15.34

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1.30ct Pink Morganite, Pear Shape, VS

1.30ct Pink Morganite, Pear Shape, VS

9.4 x 5.7 mm

$ 99.70

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8.83ct Pink Rose Quartz, Flower Cut, Transparent/Translucent

8.83ct Pink Rose Quartz, Flower Cut, Transparent/Translucent

12.8 x 12.3 mm

$ 29.03

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1.06ct Blue Kyanite, Oval, SI

1.06ct Blue Kyanite, Oval, SI

7 x 5 mm (calibrated)

$ 21.12

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5.32ct Yellow Citrine, Oval, VVS-VS

5.32ct Yellow Citrine, Oval, VVS-VS

14 x 10 mm (calibrated)

$ 31.94

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3.68ct Pink Morganite, Trillion, Translucent

3.68ct Pink Morganite, Trillion, Translucent

11 x 11 mm (calibrated)

$ 40.32

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10.92ct Green Uvarovite Garnet Drusy, Fancy, Opaque

10.92ct Green Uvarovite Garnet Drusy, Fancy, Opaque

18 x 13 mm (calibrated)

$ 16.32

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1.62ct Blue Kyanite, Oval, SI

1.62ct Blue Kyanite, Oval, SI

8 x 6 mm (calibrated)

$ 32.27

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1.25ctw Green Peridot, Marquise, VS

1.25ctw Green Peridot, Marquise, VS

8 x 4 mm (calibrated)

$ 9.96

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3.82ctw Orange Hessonite Garnet, Oval, VS-SI

3.82ctw Orange Hessonite Garnet, Oval, VS-SI

8.2 x 6.7 mm

$ 63.69

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9.22ct Pink Strawberry Quartz, Oval, Translucent

9.22ct Pink Strawberry Quartz, Oval, Translucent

16 x 12 mm (calibrated)

$ 55.36

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0.95ct Pink Morganite, Round, VS

0.95ct Pink Morganite, Round, VS

6.5 mm (calibrated)

$ 36.90

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3.41ct Orange Sunstone, Round, Translucent

3.41ct Orange Sunstone, Round, Translucent

10 mm (calibrated)

$ 19.87

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12.08ct Green Chrysoprase, Baguette, Opaque
Chrysoprase Product Video (750203)

12.08ct Green Chrysoprase, Baguette, Opaque

16.7 x 13.8 mm

$ 200.53

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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

Absolutely love the website, selection and products. Can you guys add a gemstones with inclusions tab. I like those it'd be nice to have them all in one place but i do understand it would be alot of work to go through and categorize them. Thank you anyways

Posted By The homie edgar in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was all good

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy process.

Posted By Crafty Seabee in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I had a very easy time navigating the web page and using filters to find what I was looking for. The varied selection was nice to see and pricing is clear and fair.

Posted By Mattick in May, 2026
Source: Bizrate
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