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

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ID: 394335
Weight: 4.53ct (total)
Size: 8.6 x 8.6 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 29.90
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ID: 479191
Weight: 5.89ct (total)
Size: 7.2 x 5.9 mm
Clarity: Transparent
Content: 5 pcs
Price: $ 6.86
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ID: 467899
Weight: 4.10ct (total)
Size: 3 mm (calibrated)
Clarity: Transparent
Content: 20 pcs
Price: $ 27.06
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ID: 660181
Weight: 1.91ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.04
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ID: 437066
Weight: 1.52ct
Size: 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.13
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ID: 672152
Weight: 29.77ct
Size: 27.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 35.72
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ID: 474370
Weight: 3.83ct
Size: 20.4 x 13.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.65
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ID: 439513
Weight: 6.94ct
Size: 13 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 124.92
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ID: 545029
Weight: 5.84ct (total)
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 43.56
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ID: 735816
Weight: 33.18ct
Size: 32.7 x 19.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 27.47
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ID: 464491
Weight: 2.67ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 24.67
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ID: 560662
Weight: 1.66ct
Size: 8.2 x 6.6 mm
Clarity: VS
Content: 1 pc
Price: $ 37.25
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ID: 724737
Weight: 0.90ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 27.00
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ID: 479430
Weight: 2.25ct (total)
Size: 9.9 x 4.9 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 23.76
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ID: 539893
Weight: 3.39ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.37
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ID: 726807
Weight: 1.00ct
Size: 6 x 4.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 18.00
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ID: 517981
Weight: 2.21ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 20.42
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ID: 533392
Weight: 1.60ct
Size: 8.5 x 8.2 mm
Clarity: VS
Content: 1 pc
Price: $ 12.74
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ID: 678124
Weight: 0.20ct
Size: 2.8 x 2.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 120.00
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ID: 689917
Weight: 0.81ct
Size: 9 x 5 mm
Clarity: VS
Content: 1 pc
Price: $ 7.78
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ID: 381311
Weight: 1.33ct (total)
Size: 3.4 x 3.4 mm
Clarity: VS
Content: 5 pcs
Price: $ 34.09
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ID: 645780
Weight: 10.40ct
Size: 23.1 x 14 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.45
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ID: 491759
Weight: 68.39ct (total)
Size: 24.9 x 20 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 80.35
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ID: 517943
Weight: 1.78ct
Size: 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 16.45
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ID: 531545
Weight: 2.49ct
Size: 9.3 x 6.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 109.56
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ID: 672073
Weight: 1.70ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 40.80
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ID: 524659
Weight: 0.82ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Price: $ 28.49
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ID: 635357
Weight: 1.89ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS
Price: $ 15.88
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ID: 718155
Weight: 0.80ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 24.00
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ID: 690632
Weight: 0.50ct
Size: 4.8 x 4.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.07
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ID: 350311
Weight: 1.80ct
Size: 19.3 x 3.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 52.27
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ID: 737144
Weight: 4.80ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.00
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ID: 496779
Weight: 2.87ct
Size: 9.2 x 7.6 mm
Clarity: VS
Content: 1 pc
Price: $ 75.77
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ID: 411501
Weight: 1.72ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 51.24
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ID: 700592
Weight: 0.64ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Price: $ 6.14
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ID: 390962
Weight: 2.95ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 190.57
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ID: 472150
Weight: 30.12ct (total)
Size: 20.3 x 12.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 59.64
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ID: 427231
Weight: 2.51ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 16.57
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ID: 606557
Weight: 61.30ct
Size: 33.4 x 25.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 38.03
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ID: 600422
Weight: 9.44ct
Size: 16 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 42.24
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ID: 722638
Weight: 16.70ct
Size: 21.8 x 19.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 140.28
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ID: 728015
Weight: 2.66ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 6.38
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ID: 630310
Weight: 29.76ct
Size: 23.1 x 16.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 157.49
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ID: 608159
Weight: 4.88ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 90.18
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ID: 662178
Weight: 3.93ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 9.48
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ID: 476907
Weight: 7.68ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 30.41
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ID: 712155
Weight: 2.45ct
Size: 10 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 6.53
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ID: 691148
Weight: 1.43ct
Size: 7 x 6.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 85.80
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ID: 700129
Weight: 0.65ct
Size: 5.3 x 4.9 mm
Clarity: SI
Content: 1 pc
Price: $ 39.00
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ID: 511718
Weight: 1.06ct
Size: 9.1 x 4.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 48.97
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ID: 699053
Weight: 0.84ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.06
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ID: 324125
Weight: 4.06ct (total)
Size: 8 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 29.27
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ID: 516574
Weight: 1.65ct
Size: 7.9 x 6.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 32.68
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ID: 591663
Weight: 16.43ct
Size: 14.7 x 13.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 23.64
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ID: 384228
Weight: 1.97ct
Size: 18.7 x 3.6 mm
Clarity: VS
Content: 1 pc
Price: $ 50.18
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ID: 572776
Weight: 0.76ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 30.10
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ID: 720398
Weight: 1.14ct
Size: 6.6 x 5.7 mm
Clarity: VS
Content: 1 pc
Price: $ 164.16
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ID: 473544
Weight: 2.67ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 35.24
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ID: 725759
Weight: 1.59ct (total)
Size: 6.4 x 6.3 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 15.26
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ID: 603083
Weight: 2.79ct
Size: 10.3 x 8.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 184.14
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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 -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 2024
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

GemSelect website simple to use. I recommend it to non-trade clients looking for gems.

Posted By GemJocky in July, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
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

Great experience shopping and finding what I was looking for, the only improvement I could think of would be allowing to filter more than one size at a time.

Posted By Tlicious04 in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 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

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

Posted By Ibie in February, 2025
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 -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 2024
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

GemSelect website simple to use. I recommend it to non-trade clients looking for gems.

Posted By GemJocky in July, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
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

Great experience shopping and finding what I was looking for, the only improvement I could think of would be allowing to filter more than one size at a time.

Posted By Tlicious04 in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 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

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

Posted By Ibie in February, 2025
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