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

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ID: 476804
Weight: 21.71ct
Size: 17.8 x 11 mm
Clarity: Opaque
Content: 1 pc
Price: $ 85.97
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ID: 669207
Weight: 14.30ct
Size: 18.3 x 12.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 308.88
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ID: 632514
Weight: 2.43ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 17.50
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ID: 699044
Weight: 0.96ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 8.06
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ID: 398046
Weight: 1.76ct
Size: 18.4 x 3.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 51.11
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ID: 569736
Weight: 6.90ct
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 46.20
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ID: 685682
Weight: 1.89ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 34.79
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ID: 699556
Weight: 43.27ct
Size: 28.9 x 26.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.35
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ID: 390623
Weight: 1.53ct (total)
Size: 5.1 x 3.2 mm
Clarity: VS
Content: 6 pcs
Price: $ 98.47
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ID: 480762
Weight: 5.51ct (total)
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 39.28
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ID: 711198
Weight: 0.47ct
Size: 6 x 4 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 1.25
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ID: 714198
Weight: 0.78ct
Size: 8.3 x 5.7 mm
Clarity: VS
Content: 1 pc
Price: $ 42.12
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ID: 693782
Weight: 44.07ct
Size: 37 x 23.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 30.67
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ID: 461173
Weight: 5.51ct
Size: 12 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 50.92
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ID: 598640
Weight: 1.73ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 114.18
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ID: 700750
Weight: 0.67ct
Size: 5.3 x 5.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 24.05
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ID: 712933
Weight: 1.86ct
Size: 9 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.96
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ID: 389373
Weight: 1.34ct
Size: 9 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 88.44
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ID: 367817
Weight: 4.90ct
Size: 12.5 x 8.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 33.05
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ID: 725862
Weight: 2.29ct (total)
Size: 7 x 6 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 90.71
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ID: 556869
Weight: 3.43ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 28.72
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ID: 555418
Weight: 0.74ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 5.86
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ID: 492379
Weight: 8.92ct
Size: 19 x 14.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.55
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ID: 514722
Weight: 28.67ct
Size: 33.8 x 10.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 20.82
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ID: 382346
Weight: 11.17ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 58.98
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ID: 668349
Weight: 28.90ct
Size: 32.9 x 21.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 104.04
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ID: 460999
Weight: 7.86ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 72.62
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ID: 464379
Weight: 2.86ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 26.42
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ID: 594969
Weight: 11.31ct
Size: 14 x 14 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 44.78
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ID: 479362
Weight: 0.88ct (total)
Size: 4.3 x 3.6 mm
Clarity: VS-SI
Content: 3 pcs
Price: $ 116.16
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ID: 648148
Weight: 45.27ct
Size: 36.3 x 25 mm
Clarity: Opaque
Content: 1 pc
Price: $ 89.64
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ID: 566496
Weight: 30.85ct (total)
Size: 18.9 x 15.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 70.45
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ID: 504598
Weight: 1.98ct
Size: 7.7 x 7.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 13.96
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ID: 722702
Weight: 25.41ct
Size: 27.6 x 19.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 213.44
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ID: 626180
Weight: 1.33ct
Size: 6 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 75.49
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ID: 376620
Weight: 4.31ct
Size: 10.9 x 8.5 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 48.70
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ID: 569302
Weight: 2.23ct
Size: 8 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 44.33
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ID: 527642
Weight: 2.17ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 22.92
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ID: 725013
Weight: 60.47ct
Size: 32.8 x 17.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 217.69
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ID: 699104
Weight: 3.03ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.45
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ID: 595201
Weight: 2.93ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 77.35
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ID: 734716
Weight: 33.22ct
Size: 23.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 265.76
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ID: 463482
Weight: 1.22ct
Size: 7.1 x 4.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.16
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ID: 543968
Weight: 2.22ct
Size: 8 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 44.65
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ID: 718549
Weight: 7.19ct
Size: 12 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 32.35
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ID: 511672
Weight: 1.12ct
Size: 9.8 x 5 mm
Clarity: VS
Content: 1 pc
Price: $ 51.74
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ID: 558126
Weight: 1.35ct
Size: 6.5 x 5.6 mm
Clarity: VS
Content: 1 pc
Price: $ 122.60
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ID: 700182
Weight: 0.62ct
Size: 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 37.20
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ID: 586520
Weight: 26.01ct
Size: 31.5 x 17.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 171.67
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ID: 728242
Weight: 2.61ct (total)
Size: 6.8 x 6.1 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 15.66
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ID: 695859
Weight: 3.38ct
Size: 9 x 8.4 mm
Clarity: VS
Content: 1 pc
Price: $ 101.40
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ID: 446970
Weight: 22.90ct (total)
Size: 25.1 x 15.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 75.58
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ID: 497588
Weight: 54.18ct
Size: 34.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 71.52
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ID: 603876
Weight: 2.16ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 18.14
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ID: 658298
Weight: 25.09ct
Size: 26.7 x 26.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 90.32
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ID: 332915
Weight: 25.47ct
Size: 20.7 x 17.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 40.34
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ID: 635654
Weight: 0.48ct
Size: 6.8 x 4.7 mm
Clarity: VS
Content: 1 pc
Price: $ 13.82
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ID: 605432
Weight: 1.84ct
Size: 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 10.12
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ID: 350920
Weight: 3.89ct (total)
Size: 3.5 x 3.5 mm
Clarity: VS-SI
Content: 15 pcs
Price: $ 35.94
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ID: 379838
Weight: 3.51ct (total)
Size: 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 198.86
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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

I love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 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

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always excellent quality and service from GemSelect

Posted By Mike B. in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I was looking for

Posted By Lincolnpremier in January, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

The website was nice and I bought some gems

Posted By Jay 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

I love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 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

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always excellent quality and service from GemSelect

Posted By Mike B. in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I was looking for

Posted By Lincolnpremier in January, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

The website was nice and I bought some gems

Posted By Jay 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