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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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24.00ct Multicolor Rainbow Pyrite, Fancy, Opaque

24.00ct Multicolor Rainbow Pyrite, Fancy, Opaque

31.6 x 19.8 mm

$ 62.15

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2.02ct Red Almandine Garnet, Oval, VVS

2.02ct Red Almandine Garnet, Oval, VVS

9 x 7 mm (calibrated)

$ 75.45

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53.10ct Violet Charoite, Pear Shape, Opaque

53.10ct Violet Charoite, Pear Shape, Opaque

45.2 x 27.6 mm

$ 30.27

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1.64ct Green Tourmaline, Oval, VVS-VS

1.64ct Green Tourmaline, Oval, VVS-VS

7 x 7 mm (calibrated)

$ 190.57

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5.89ctw Multicolor Labradorite, Square, Translucent

5.89ctw Multicolor Labradorite, Square, Translucent

4.5 x 4.5 mm

$ 6.83

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37.21ct Green Amazonite, Fancy, Opaque

37.21ct Green Amazonite, Fancy, Opaque

42.1 x 10.8 mm

$ 7.41

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7.62ct Brown Star Moonstone, Oval, Translucent

7.62ct Brown Star Moonstone, Oval, Translucent

14.6 x 11.6 mm

$ 33.40

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5.95ctw Red Almandine Garnet, Round, Transparent

5.95ctw Red Almandine Garnet, Round, Transparent

3.2 mm

$ 32.60

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2.17ct Orange Sunstone, Oval, Translucent

2.17ct Orange Sunstone, Oval, Translucent

9.4 x 7.7 mm

$ 12.96

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25.25ct Bi-Color Ametrine, Oval, VVS-VS

25.25ct Bi-Color Ametrine, Oval, VVS-VS

24.9 x 15.6 mm

$ 138.33

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43.83ct Brown Tiger'S Eye, Fancy, Opaque

43.83ct Brown Tiger'S Eye, Fancy, Opaque

36.9 x 12 mm

$ 4.37

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9.12ctw Green Prehnite, Oval, Transparent

9.12ctw Green Prehnite, Oval, Transparent

8 x 8 mm (calibrated)

$ 58.28

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7.12ct Purple Kunzite, Emerald Cut, VS
Kunzite Product Video (453513)

7.12ct Purple Kunzite, Emerald Cut, VS

18.4 x 7 mm

$ 195.02

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11.73ct Blue Color-Change Fluorite, Round, VS

11.73ct Blue Color-Change Fluorite, Round, VS

14 mm (calibrated)

$ 321.29

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9.71ct Pink Rose Quartz, Fancy, Transparent

9.71ct Pink Rose Quartz, Fancy, Transparent

20.1 x 14.4 mm

$ 33.83

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44.30ct Multicolor Jasper, Oval, Opaque

44.30ct Multicolor Jasper, Oval, Opaque

30 x 22 mm (calibrated)

$ 36.40

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1.02ctw Orange Citrine, Trillion, VVS-VS

1.02ctw Orange Citrine, Trillion, VVS-VS

6 x 6 mm (calibrated)

$ 8.47

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4.63ct Multicolor Pietersite, Oval, Opaque

4.63ct Multicolor Pietersite, Oval, Opaque

16.3 x 11.4 mm

$ 9.34

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4.45ct Multicolor Fire Agate, Fancy, Opaque

4.45ct Multicolor Fire Agate, Fancy, Opaque

13.5 x 7.7 mm

$ 34.21

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67.95ct Multicolor Tiger'S Eye Matrix, Oval, Opaque

67.95ct Multicolor Tiger'S Eye Matrix, Oval, Opaque

43.5 x 25.4 mm

$ 67.68

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16.58ct Black Nuummite, Oval, Opaque

16.58ct Black Nuummite, Oval, Opaque

17.7 x 15.2 mm

$ 68.04

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38.87ct Gray Hematite, Round, Opaque

38.87ct Gray Hematite, Round, Opaque

21.6 mm

$ 37.90

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3.24ct Yellow Color-Change Diaspore, Pear Shape, VS-SI
Color-Change Diaspore Product Video (390226)

3.24ct Yellow Color-Change Diaspore, Pear Shape, VS-SI

11.3 x 7.9 mm

$ 887.44

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26.70ct Yellow Jadeite, Fancy, Translucent

26.70ct Yellow Jadeite, Fancy, Translucent

39.8 x 14 mm

$ 21.93

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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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I found the filter options excellent. Yours was the third site I visited (asked chat got for reputable online sellers of loose gems) and the first I purchased from as I was able to easily find what I was looking for.

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

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