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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
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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
White Natural Untreated Gemstones
Yellow Natural Untreated Gemstones
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0.96ct Red Spinel, Cushion, VS
Spinel Product Video (741432)

0.96ct Red Spinel, Cushion, VS

6.1 x 5.4 mm

$ 103.58

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1.68ct Yellow Beryl, Oval, VVS

1.68ct Yellow Beryl, Oval, VVS

9 x 7 mm (calibrated)

$ 33.47

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3.16ctw White Topaz, Cushion, VVS-VS

3.16ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 17.31

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0.51ct Gray Cat'S Eye Alexandrite, Oval, Opaque

0.51ct Gray Cat'S Eye Alexandrite, Oval, Opaque

5.8 x 3.6 mm

$ 148.16

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1.33ct Purple Spinel, Cushion, VS

1.33ct Purple Spinel, Cushion, VS

6.5 x 6.2 mm

$ 50.17

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1.03ct Yellow Beryl, Trillion, VVS

1.03ct Yellow Beryl, Trillion, VVS

7.3 x 7 mm

$ 20.52

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3.36ct White Topaz, Oval, Transparent

3.36ct White Topaz, Oval, Transparent

10 x 8 mm (calibrated)

$ 18.41

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5.19ctw White Topaz, Square, VS

5.19ctw White Topaz, Square, VS

4 x 4 mm (calibrated)

$ 39.80

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1.07ct Yellow Beryl, Oval, VVS-VS

1.07ct Yellow Beryl, Oval, VVS-VS

8 x 6 mm (calibrated)

$ 21.31

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0.59ct Red Spinel, Oval, VS
Spinel Product Video (749001)

0.59ct Red Spinel, Oval, VS

6.5 x 4.6 mm

$ 122.43

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0.62ct Pink Spinel, Cushion, VVS

0.62ct Pink Spinel, Cushion, VVS

5.2 x 4 mm

$ 43.23

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0.59ct Pink Morganite, Pear Shape, VVS

0.59ct Pink Morganite, Pear Shape, VVS

8.8 x 4 mm

$ 35.56

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4.31ct Pink Morganite, Pear Shape, Transparent

4.31ct Pink Morganite, Pear Shape, Transparent

14 x 9 mm (calibrated)

$ 47.22

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1.26ct Yellow Beryl, Oval, VVS-VS

1.26ct Yellow Beryl, Oval, VVS-VS

9 x 7 mm (calibrated)

$ 24.05

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2.78ct Pink Morganite, Round, Transparent

2.78ct Pink Morganite, Round, Transparent

9.5 mm (calibrated)

$ 30.46

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2.78ctw White Topaz, Cushion, VVS-VS

2.78ctw White Topaz, Cushion, VVS-VS

4.6 x 4.6 mm

$ 15.23

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5.08ct Blue Aquamarine, Oval, VS-SI

5.08ct Blue Aquamarine, Oval, VS-SI

14 x 10 mm (calibrated)

$ 105.41

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2.60ctw White Topaz, Cushion, VVS-VS

2.60ctw White Topaz, Cushion, VVS-VS

4.5 x 4.5 mm

$ 14.24

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0.84ct Pink Spinel, Cushion, VS

0.84ct Pink Spinel, Cushion, VS

5.4 x 5.1 mm

$ 30.04

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0.18ctw White Diamond, Round, VVS-VS

0.18ctw White Diamond, Round, VVS-VS

2.8 mm (calibrated)

$ 321.79

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0.21ctw White Diamond, Round, VVS-VS
Diamond Product Video (565130)

0.21ctw White Diamond, Round, VVS-VS

3 mm (calibrated)

$ 381.55

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1.84ctw Multicolor Andalusite, Oval, VS

1.84ctw Multicolor Andalusite, Oval, VS

5.5 x 3.8 mm

$ 100.80

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0.12ct Black Diamond, Round, Opaque

0.12ct Black Diamond, Round, Opaque

3 mm (calibrated)

$ 57.09

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1.06ct Yellow Sapphire, Cushion, VS
Sapphire Product Video (752166)

1.06ct Yellow Sapphire, Cushion, VS

6.6 x 5.9 mm

$ 219.95

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!

Overall Rating -> 10 star ratings

My current project is something BLUE . Opal earrings with matching tennis bracelet for her wedding. The opals and sixty two sapphires VVS & VS are AMAZINGLY BEAUTIFUL. The private jewelers were impressed by the clarity and inclusion free of the sapphires . I want to say thank you for the High quality sapphires that I purchased for my daughtera's wedding.

Posted By My real name Dean or Wandering about in May, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Great! Affordable

Posted By Spinellope in April, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Very neat and to the point

Posted By Botha in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and good price

Posted By Bry_guy in March, 2026
Source: Bizrate

Overall Rating -> 10 star ratings

The website has a good selection, the interface is very intuitive.

Posted By PhoenixFeatherJewelry in January, 2026
Source: Bizrate

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
→ View All GemSelect Reviews on Bizrate
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