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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
Black Natural Untreated Gemstones
Blue 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
Turquoise Natural Untreated Gemstones
Violet Natural Untreated Gemstones
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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0.21Ct Flamingo Pink Morganite, Round, Vvs-Vs

0.21Ct Flamingo Pink Morganite, Round, Vvs-Vs

4.2 mm

$ 10.50

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1.24Ct Light Pink Morganite, Pear Shape, Vvs

1.24Ct Light Pink Morganite, Pear Shape, Vvs

8.1 x 6.7 mm

$ 130.94

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13.93Ctw Black Spinel, Round, Opaque

13.93Ctw Black Spinel, Round, Opaque

12 mm (calibrated)

$ 55.16

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0.99Ct Flamingo Pink Morganite, Pear Shape, Vs

0.99Ct Flamingo Pink Morganite, Pear Shape, Vs

8.8 x 5.3 mm

$ 71.88

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1.14Ct Light Pink Morganite, Round, Vs

1.14Ct Light Pink Morganite, Round, Vs

7 mm (calibrated)

$ 53.35

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0.99Ct Black Diamond, Square, Opaque
Diamond Product Video (677844)

0.99Ct Black Diamond, Square, Opaque

5.1 x 4.8 mm

$ 679.49

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1.09Ct Earthy Yellow Beryl, Trillion, Vvs

1.09Ct Earthy Yellow Beryl, Trillion, Vvs

8 x 8 mm (calibrated)

$ 31.39

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6.64Ct Very Light Golden-Brown Rutile Topaz, Marquise, Transparent

6.64Ct Very Light Golden-Brown Rutile Topaz, Marquise, Transparent

24.1 x 8.5 mm

$ 166.00

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0.06Ct D Diamond, Marquise, Vvs

0.06Ct D Diamond, Marquise, Vvs

4.1 x 2.1 mm

$ 251.25

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5.29Ct Light Yellow Rutile Topaz, Oval, Transparent
Rutile Topaz Product Video (753609)

5.29Ct Light Yellow Rutile Topaz, Oval, Transparent

12.2 x 9.5 mm

$ 132.25

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1.23Ct Light Purple Spinel, Cushion, Vs

1.23Ct Light Purple Spinel, Cushion, Vs

6.6 x 5.9 mm

$ 104.42

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4.04Ct White Topaz, Round, Vs

4.04Ct White Topaz, Round, Vs

11 mm (calibrated)

$ 19.33

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0.89Ct Light Purple Spinel, Cushion, Vvs

0.89Ct Light Purple Spinel, Cushion, Vvs

6.6 x 4.7 mm

$ 38.34

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0.70Ct Flamingo Pink Morganite, Pear Shape, Vvs-Vs

0.70Ct Flamingo Pink Morganite, Pear Shape, Vvs-Vs

7.4 x 5 mm

$ 50.82

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2.35Ctw Multicolor Andalusite, Round, Vs-Si
Andalusite Product Video (206877)

2.35Ctw Multicolor Andalusite, Round, Vs-Si

4 mm (calibrated)

$ 139.60

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1.30Ct Salmon Pink Morganite, Oval, Vvs-Vs

1.30Ct Salmon Pink Morganite, Oval, Vvs-Vs

8.2 x 6.4 mm

$ 120.12

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1.39Ct Very Light Pinkish Purple Spinel, Cushion, Vs

1.39Ct Very Light Pinkish Purple Spinel, Cushion, Vs

6.8 x 6.4 mm

$ 114.49

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25.49Ctw Black Spinel, Baguette, Opaque

25.49Ctw Black Spinel, Baguette, Opaque

20.2 x 10.1 mm

$ 91.76

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4.58Ctw Warm White Topaz, Square, Vvs-Vs

4.58Ctw Warm White Topaz, Square, Vvs-Vs

4.2 x 4.2 mm

$ 40.39

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8.21Ctw White Topaz, Heart, Vvs-Vs

8.21Ctw White Topaz, Heart, Vvs-Vs

10 x 10 mm (calibrated)

$ 82.10

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0.99Ct Light Red-Purple Spinel, Oval, Vvs
Spinel Product Video (360169)

0.99Ct Light Red-Purple Spinel, Oval, Vvs

6.9 x 5.2 mm

$ 79.87

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4.90Ct Medium Pink Morganite, Oval, Transparent

4.90Ct Medium Pink Morganite, Oval, Transparent

13 x 9 mm (calibrated)

$ 64.68

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2.20Ct Medium Yellow Beryl, Round, Vvs-Vs

2.20Ct Medium Yellow Beryl, Round, Vvs-Vs

9 mm (calibrated)

$ 63.36

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6.12Ctw White Topaz, Oval, Vvs-Vs

6.12Ctw White Topaz, Oval, Vvs-Vs

10 x 8 mm (calibrated)

$ 56.54

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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

They have a wonderful selection of gems of all sorts, shapes, cuts, and quality. I am very particular about the quality of stones I buy, and found many with VVS clarity and excellent cut and polish. I am thrilled with each of the stones I purchased, and would definitely recommend GemSelect to everyone.

Posted By Debsarabs in February, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

I have a beautiful emerald I purchased from a company names gemselect and they are awesome! You should try them out?

Posted By Lynn in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.

Posted By YE in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items

Posted By Desperaux in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love the precise descriptions and calibrations of hte loose gemstones. Would like to have seen more variety in the size gem I was looking for.

Posted By RenoRose in January, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great prices!!! High quality gemstones.

Posted By Ricky in October, 2025
Source: Bizrate
→ View All GemSelect Reviews on Bizrate
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