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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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0.56ctw Brown Diamond, Round, VS-SI
Diamond Product Video (700078)

0.56ctw Brown Diamond, Round, VS-SI

4.3 mm

$ 745.22

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2.64ct Orange Hessonite Garnet, Oval, VS-SI

2.64ct Orange Hessonite Garnet, Oval, VS-SI

9.3 x 7.7 mm

$ 39.36

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1.94ct Yellow Sphene, Oval, Transparent

1.94ct Yellow Sphene, Oval, Transparent

7.9 x 6.6 mm

$ 9.66

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4.81ctw Yellow Citrine, Oval, VVS-VS

4.81ctw Yellow Citrine, Oval, VVS-VS

10 x 8 mm (calibrated)

$ 26.35

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5.43ctw Yellow Citrine, Oval, VS

5.43ctw Yellow Citrine, Oval, VS

10 x 8 mm (calibrated)

$ 29.75

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3.60ct Yellow Tourmaline, Cushion, Transparent

3.60ct Yellow Tourmaline, Cushion, Transparent

10 x 8 mm (calibrated)

$ 39.44

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18.38ct Multicolor Jasper, Pear Shape, Opaque

18.38ct Multicolor Jasper, Pear Shape, Opaque

27 x 18.5 mm

$ 15.11

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2.54ct Orange Hessonite Garnet, Emerald Cut, VS-SI

2.54ct Orange Hessonite Garnet, Emerald Cut, VS-SI

8 x 6 mm (calibrated)

$ 41.92

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11.89ct Green Opal, Oval, Opaque

11.89ct Green Opal, Oval, Opaque

17 x 14.1 mm

$ 25.46

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0.87ctw Red Pyrope Garnet, Square, VVS-VS

0.87ctw Red Pyrope Garnet, Square, VVS-VS

4 x 4 mm (calibrated)

$ 6.67

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0.19ct White Diamond, Round, VVS

0.19ct White Diamond, Round, VVS

3.5 mm (calibrated)

$ 319.00

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7.36ctw Violet Amethyst, Heart, VVS-VS

7.36ctw Violet Amethyst, Heart, VVS-VS

6 x 6 mm (calibrated)

$ 33.60

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6.58ct Black Star Diopside, Oval, Opaque

6.58ct Black Star Diopside, Oval, Opaque

12 x 10 mm (calibrated)

$ 32.77

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10.52ct Brown Tiger'S Eye, Oval, Opaque

10.52ct Brown Tiger'S Eye, Oval, Opaque

18 x 13 mm (calibrated)

$ 6.18

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4.54ct Yellow Citrine, Emerald Cut, VVS-VS

4.54ct Yellow Citrine, Emerald Cut, VVS-VS

12 x 8 mm (calibrated)

$ 34.82

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24.76ct Green Serpentine, Oval, Translucent

24.76ct Green Serpentine, Oval, Translucent

30.6 x 17.2 mm

$ 53.02

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2.36ct White Moonstone, Oval, Translucent

2.36ct White Moonstone, Oval, Translucent

10 x 8 mm (calibrated)

$ 18.81

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2.76ct Pink Strawberry Quartz, Oval, Transparent

2.76ct Pink Strawberry Quartz, Oval, Transparent

10 x 8 mm (calibrated)

$ 20.51

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0.68ct Multicolor Opal, Pear Shape, Transparent

0.68ct Multicolor Opal, Pear Shape, Transparent

8 x 5.7 mm

$ 16.93

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1.17ct Yellow Citrine, Cushion, VVS-VS

1.17ct Yellow Citrine, Cushion, VVS-VS

8 x 6 mm (calibrated)

$ 8.74

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1.56ct Orange Zircon, Emerald Cut, VVS

1.56ct Orange Zircon, Emerald Cut, VVS

7 x 5 mm (calibrated)

$ 25.64

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8.73ct Multicolor Labradorite, Pear Shape, Translucent

8.73ct Multicolor Labradorite, Pear Shape, Translucent

18 x 13 mm (calibrated)

$ 19.31

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0.84ct Green Peridot, Oval, VS

0.84ct Green Peridot, Oval, VS

7 x 5 mm (calibrated)

$ 5.86

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1.30ct Yellow Citrine, Oval, Transparent

1.30ct Yellow Citrine, Oval, Transparent

7.7 x 5.9 mm

$ 7.12

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!

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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.

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I was able to find what I wanted very easily!

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Overall Rating -> 10 star ratings

It was good. There was a large selection at prices I could afford.

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