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

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ID: 674277
Weight: 16.44ct
Size: 25.1 x 14.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 295.92
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ID: 706499
Weight: 14.40ct
Size: 16.5 x 13.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 29.38
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ID: 435816
Weight: 8.01ct
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 26.22
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ID: 706624
Weight: 11.61ct
Size: 15.5 x 13.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 23.69
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ID: 691037
Weight: 1.28ct
Size: 6.6 x 5.6 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 76.80
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ID: 568309
Weight: 3.53ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 33.88
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ID: 715730
Weight: 6.99ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 67.10
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ID: 384174
Weight: 1.17ct
Size: 13.3 x 3.6 mm
Clarity: VS
Content: 1 pc
Price: $ 29.81
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ID: 684208
Weight: 0.47ct
Size: 5 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 19.74
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ID: 685228
Weight: 55.64ct
Size: 22.3 x 21.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 238.36
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ID: 435526
Weight: 8.76ct
Size: 14 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 28.67
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ID: 689360
Weight: 4.28ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 23.58
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ID: 640454
Weight: 1.59ct
Size: 7.5 x 5.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.50
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ID: 635551
Weight: 3.14ct
Size: 9.3 x 7.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 16.13
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ID: 663338
Weight: 32.30ct (total)
Size: 27.4 x 15.9 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 22.87
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ID: 431635
Weight: 1.48ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 15.61
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ID: 482267
Weight: 2.24ct
Size: 8.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 16.14
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ID: 528924
Weight: 17.31ct
Size: 33.5 x 8.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 11.44
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ID: 712754
Weight: 1.99ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 47.76
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ID: 662685
Weight: 1.15ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 27.60
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ID: 710775
Weight: 2.15ct
Size: 12 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.72
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ID: 556008
Weight: 0.87ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 17.23
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ID: 711229
Weight: 1.41ct
Size: 7.5 x 6.1 mm
Clarity: VS
Content: 1 pc
Price: $ 33.84
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ID: 539309
Weight: 2.32ct
Size: 8 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 45.29
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ID: 648670
Weight: 8.17ct (total)
Size: 12 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 14.71
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ID: 431302
Weight: 1.38ct (total)
Size: 4.8 x 4.8 mm
Clarity: VS
Content: 2 pcs
Price: $ 14.56
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ID: 693090
Weight: 26.02ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 218.57
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ID: 389152
Weight: 1.68ct
Size: 7.5 x 6.5 mm
Clarity: VS
Content: 1 pc
Price: $ 110.88
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ID: 471639
Weight: 11.28ct
Size: 17 x 13.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 104.23
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ID: 627836
Weight: 14.55ct
Size: 16.5 x 13.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 76.25
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ID: 659827
Weight: 0.94ct
Size: 9 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 2.26
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ID: 640725
Weight: 1.59ct
Size: 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 45.79
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ID: 487873
Weight: 2.02ct (total)
Size: 8 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 10.67
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ID: 396309
Weight: 4.35ct
Size: 8.8 x 8.6 mm
Clarity: VS
Content: 1 pc
Price: $ 213.31
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ID: 725706
Weight: 1.34ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 53.08
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ID: 499323
Weight: 1.34ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 12.38
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ID: 557215
Weight: 3.26ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 27.29
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ID: 433871
Weight: 15.06ct
Size: 28.5 x 16.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 190.82
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ID: 673516
Weight: 2.80ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 67.20
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ID: 376266
Weight: 4.86ct (total)
Size: 8.4 x 7.1 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 37.66
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ID: 712809
Weight: 1.02ct
Size: 7.4 x 5.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 20.36
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ID: 687577
Weight: 4.98ct (total)
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 14.58
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ID: 721319
Weight: 0.81ct
Size: 6.5 x 4.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 38.88
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ID: 418439
Weight: 16.61ct
Size: 19.5 x 13.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 32.89
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ID: 534624
Weight: 2.80ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 22.18
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ID: 635856
Weight: 1.16ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 20.88
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ID: 662984
Weight: 4.60ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 11.04
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ID: 707928
Weight: 3.48ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.76
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ID: 697857
Weight: 5.60ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 47.04
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ID: 705731
Weight: 0.73ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS
Price: $ 6.13
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ID: 560874
Weight: 0.90ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 8.32
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ID: 730022
Weight: 1.15ct
Size: 15.5 x 3.1 mm
Clarity: VS
Content: 1 pc
Price: $ 69.00
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ID: 664135
Weight: 1.09ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 9.16
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ID: 650931
Weight: 3.62ct (total)
Size: 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 30.41
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ID: 391140
Weight: 38.33ct (total)
Size: 33.3 x 15 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 75.90
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ID: 719797
Weight: 0.89ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.48
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ID: 475374
Weight: 4.72ct
Size: 14.6 x 10.9 mm
Clarity: VS
Content: 1 pc
Price: $ 43.61
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ID: 567533
Weight: 7.66ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 50.56
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ID: 480322
Weight: 6.42ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Translucent
Content: 10 pcs
Price: $ 13.56
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ID: 491770
Weight: 60.34ct (total)
Size: 24.3 x 16.8 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 70.88
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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 -> 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

Easy and convenient

Posted By Butch in September, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I just bought some mystic quartz. Checkout was smooth and pleasant

Posted By Jay in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

easy site to navigate

Posted By Curt's Cabochons in June, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Muy serios y muy oportunos para el envo

Posted By Veronica in September, 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 -> 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

Easy and convenient

Posted By Butch in September, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I just bought some mystic quartz. Checkout was smooth and pleasant

Posted By Jay in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

easy site to navigate

Posted By Curt's Cabochons in June, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Muy serios y muy oportunos para el envo

Posted By Veronica in September, 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