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Loose Untreated Gemstones: Certified Natural Gems for Collectors and Jewelry, Wholesale Untreated Stones

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ID: 572181
Weight: 2.90ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 26.80
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ID: 451187
Weight: 1.36ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 12.56
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ID: 430719
Weight: 2.50ct (total)
Size: 6.1 x 4.2 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 16.50
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ID: 389502
Weight: 3.00ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 144.00
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ID: 706417
Weight: 8.84ct
Size: 13.3 x 11.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.04
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ID: 690304
Weight: 12.46ct
Size: 19.1 x 15.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 48.14
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ID: 464432
Weight: 4.26ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 39.36
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ID: 674276
Weight: 14.74ct
Size: 19.6 x 13.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 265.32
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ID: 636056
Weight: 1.10ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 19.80
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ID: 398874
Weight: 1.75ct
Size: 8.1 x 6.7 mm
Clarity: VS
Content: 1 pc
Price: $ 46.20
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ID: 445738
Weight: 11.29ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 29.95
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ID: 466981
Weight: 0.51ct
Size: 7.3 x 4.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.03
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ID: 483587
Weight: 1.21ct
Size: 6.6 x 6.3 mm
Clarity: VS
Content: 1 pc
Price: $ 87.85
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ID: 682435
Weight: 14.45ct
Size: 15.9 x 14.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 86.70
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ID: 459889
Weight: 4.31ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 39.83
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ID: 727287
Weight: 1.72ct
Size: 6.2 x 6.1 mm
Clarity: VS
Content: 1 pc
Price: $ 103.20
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ID: 710208
Weight: 2.06ct
Size: 8.5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 6.01
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ID: 675435
Weight: 4.92ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.99
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ID: 546353
Weight: 30.46ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.13
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ID: 560854
Weight: 1.88ct
Size: 8.5 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 163.79
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ID: 732810
Weight: 0.67ct
Size: 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 16.08
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ID: 732981
Weight: 0.81ct
Size: 5.6 x 4.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 19.44
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ID: 684376
Weight: 1.33ct (total)
Size: 5.1 x 4.2 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 55.86
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ID: 582530
Weight: 31.97ct (total)
Size: 14.8 x 15.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 46.01
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ID: 528916
Weight: 19.04ct
Size: 32.9 x 8.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 12.56
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ID: 648923
Weight: 3.12ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 22.13
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ID: 639849
Weight: 0.29ct
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 13.92
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ID: 620025
Weight: 9.62ct
Size: 14 x 14 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 48.62
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ID: 558071
Weight: 3.50ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.07
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ID: 435638
Weight: 12.87ct
Size: 18 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 42.13
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ID: 685663
Weight: 1.22ct
Size: 8 x 6.5 mm
Clarity: VS
Content: 1 pc
Price: $ 22.45
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ID: 464434
Weight: 2.69ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 24.85
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ID: 689359
Weight: 4.42ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 24.35
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ID: 649868
Weight: 10.70ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 7.57
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ID: 397463
Weight: 12.98ct (total)
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 85.67
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ID: 711706
Weight: 0.71ct
Size: 6.2 x 4.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 14.17
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ID: 514948
Weight: 11.72ct
Size: 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 17.17
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ID: 514346
Weight: 9.00ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 20.20
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ID: 411298
Weight: 4.74ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 128.38
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ID: 731719
Weight: 4.52ct
Size: 11 x 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 9.22
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ID: 667702
Weight: 2.38ct
Size: 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 48.80
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ID: 716395
Weight: 0.74ct
Size: 8.7 x 4 mm
Clarity: VVS
Content: 1 pc
Price: $ 47.06
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ID: 605845
Weight: 12.39ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 19.14
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ID: 714550
Weight: 1.27ct (total)
Size: 5.2 mm
Clarity: SI
Content: 2 pcs
Price: $ 38.10
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ID: 338297
Weight: 16.75ct
Size: 19.1 x 11.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 50.26
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ID: 492619
Weight: 5.04ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 36.46
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ID: 725727
Weight: 0.35ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 3.36
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ID: 528685
Weight: 1.38ct
Size: 7.4 x 5.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 120.23
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ID: 622740
Weight: 0.37ct
Size: 4.6 x 4 mm
Clarity: VS
Content: 1 pc
Price: $ 24.42
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ID: 456692
Weight: 1.96ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 18.11
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ID: 722645
Weight: 15.29ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 128.44
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ID: 718560
Weight: 16.75ct
Size: 26.6 x 15.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 100.50
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ID: 662145
Weight: 1.63ct
Size: 7 x 7 mm (calibrated)
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 3.94
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ID: 462486
Weight: 1.64ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 4 pcs
Price: $ 86.59
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ID: 544252
Weight: 1.14ct
Size: 7.7 x 7.6 mm
Clarity: VVS-VS
Price: $ 8.50
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ID: 488752
Weight: 2.01ct (total)
Size: 8 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 10.61
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ID: 704851
Weight: 1.57ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 47.10
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ID: 366684
Weight: 8.48ct
Size: 15 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 48.41
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ID: 348240
Weight: 53.88ct
Size: 43.3 x 28.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 71.12
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ID: 547554
Weight: 3.08ct
Size: 9 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 20.33
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FAQs

What are loose untreated gemstones?

Loose untreated gemstones are natural stones that have not undergone any artificial treatments or enhancements. Examples include unheated sapphires, untreated rubies, and unenhanced diamonds, which maintain their natural beauty and originality.

Why should I choose untreated gemstones over treated ones?

Untreated gemstones, such as unheated topaz and virgin untreated stones, are valued for their authenticity and rarity. These certified untreated gems are perfect for collectors and those seeking ethically sourced, natural stones for unique jewelry designs.

Are untreated gemstones suitable for engagement rings?

Yes, untreated gemstones like GIA-certified natural gems, unenhanced diamonds, and untreated rubies are excellent choices for engagement rings. They offer timeless elegance and are ideal for creating one-of-a-kind designs that reflect personal style.

What makes rare untreated gems valuable for collectors?

Rare untreated gems for collectors, such as authentic untreated crystals and unheated and untreated stones, are prized for their natural appearance and limited availability. Their untouched state makes them highly desirable and a great investment.

How can I ensure the quality of loose untreated gemstones?

Always choose certified untreated gems, like GIA-certified natural gems, to guarantee authenticity and quality. These stones undergo thorough evaluation to ensure they meet the highest standards, making them ideal for both personal collections and jewelry projects.

What types of untreated gemstones are available?

Our collection includes a variety of untreated gemstones such as unheated sapphires, untreated rubies, unenhanced diamonds, and unheated topaz. Each stone is carefully selected to offer unmatched quality and natural beauty.

Are untreated gemstones more expensive than treated ones?

In many cases, untreated gemstones, like precious untreated gemstones and virgin untreated stones, can be more valuable due to their rarity and natural state. Their unique characteristics make them highly sought after by collectors and jewelry enthusiasts.

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

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have been buying gems for several years off and on and love their selection and great low prices. I started out wanting to get an example of each type of gem but after looking at all the types of gems and reading about them I realize it is almost impossible for me to do. It took me years just to read about them all. Gem Select is the best gem site you can find. For information or to buy. Steve M.

Posted By Stevee M. in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought from you before and have found your gems exceed my expectations. I have been very satisfied with all gems sent to me. I will be back. Thanks....

Posted By Dork in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All Good

Posted By Boru in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love gemstones. My father was a jeweler & I used to shop for stones for him.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

Why Choose Loose Untreated Gemstones?

Selecting loose untreated gemstones ensures you’re investing in authentic, natural beauty. Gems like unheated sapphires, untreated rubies, and unenhanced diamonds retain their original allure, free from artificial enhancements. These certified untreated gems are ideal for those seeking unique, ethical, and high-quality stones for custom jewelry or collections.

Perfect for Engagement Rings and Collectors

Our untreated gemstones, including GIA-certified natural gems, are highly sought after for engagement rings and collector’s pieces. With options like unheated topaz and virgin untreated stones, you can create a timeless design that reflects your individual style. Each gem is carefully selected for its purity and brilliance.

Rare and Exquisite Natural Gems

From authentic untreated crystals to precious untreated gemstones, our collection offers something for every taste. These rare untreated gems for collectors are perfect for showcasing the natural beauty of stones like unheated and untreated stones that remain untouched by enhancements, preserving their natural value and appeal.

Quality Assurance You Can Trust

Every stone in our selection of loose untreated gemstones is thoroughly inspected to meet the highest standards. Whether you’re looking for untreated gemstones for engagement rings or certified untreated gems for a special project, our collection ensures authenticity and unparalleled quality.

Read All

Over 19 Years in the Gemstone Business!

Thank you for trusting us with your purchase!

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have been buying gems for several years off and on and love their selection and great low prices. I started out wanting to get an example of each type of gem but after looking at all the types of gems and reading about them I realize it is almost impossible for me to do. It took me years just to read about them all. Gem Select is the best gem site you can find. For information or to buy. Steve M.

Posted By Stevee M. in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought from you before and have found your gems exceed my expectations. I have been very satisfied with all gems sent to me. I will be back. Thanks....

Posted By Dork in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All Good

Posted By Boru in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love gemstones. My father was a jeweler & I used to shop for stones for him.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

FAQ's

What are loose untreated gemstones?

Loose untreated gemstones are natural stones that have not undergone any artificial treatments or enhancements. Examples include unheated sapphires, untreated rubies, and unenhanced diamonds, which maintain their natural beauty and originality.

Why should I choose untreated gemstones over treated ones?

Untreated gemstones, such as unheated topaz and virgin untreated stones, are valued for their authenticity and rarity. These certified untreated gems are perfect for collectors and those seeking ethically sourced, natural stones for unique jewelry designs.

Are untreated gemstones suitable for engagement rings?

Yes, untreated gemstones like GIA-certified natural gems, unenhanced diamonds, and untreated rubies are excellent choices for engagement rings. They offer timeless elegance and are ideal for creating one-of-a-kind designs that reflect personal style.

What makes rare untreated gems valuable for collectors?

Rare untreated gems for collectors, such as authentic untreated crystals and unheated and untreated stones, are prized for their natural appearance and limited availability. Their untouched state makes them highly desirable and a great investment.

How can I ensure the quality of loose untreated gemstones?

Always choose certified untreated gems, like GIA-certified natural gems, to guarantee authenticity and quality. These stones undergo thorough evaluation to ensure they meet the highest standards, making them ideal for both personal collections and jewelry projects.

What types of untreated gemstones are available?

Our collection includes a variety of untreated gemstones such as unheated sapphires, untreated rubies, unenhanced diamonds, and unheated topaz. Each stone is carefully selected to offer unmatched quality and natural beauty.

Are untreated gemstones more expensive than treated ones?

In many cases, untreated gemstones, like precious untreated gemstones and virgin untreated stones, can be more valuable due to their rarity and natural state. Their unique characteristics make them highly sought after by collectors and jewelry enthusiasts.

Enlarged Gemstone Image