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

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ID: 445752
Weight: 4.64ct
Size: 13 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 33.88
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ID: 453053
Weight: 4.70ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 43.43
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ID: 680785
Weight: 1.03ct
Size: 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 30.90
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ID: 644181
Weight: 2.42ct
Size: 14 x 7.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 20.33
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ID: 557729
Weight: 7.95ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 60.13
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ID: 696814
Weight: 19.76ct
Size: 30.8 x 9.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 2.38
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ID: 682717
Weight: 0.22ct
Size: 3.5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 126.10
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ID: 706933
Weight: 2.30ct
Size: 8.5 mm (calibrated)
Clarity: VS-SI
Price: $ 22.08
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ID: 397458
Weight: 1.27ct
Size: 7.3 x 4.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 79.96
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ID: 537741
Weight: 1.47ct
Size: 11.3 x 4.3 mm
Clarity: VS
Content: 1 pc
Price: $ 133.88
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ID: 477535
Weight: 1.77ct (total)
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 4 pcs
Price: $ 49.79
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ID: 715524
Weight: 0.34ct
Size: 4.5 x 4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.62
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ID: 672550
Weight: 2.39ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 57.36
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ID: 602233
Weight: 10.97ct (total)
Size: 17.5 x 11.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 58.36
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ID: 696850
Weight: 2.89ct (total)
Size: 10.6 x 7.9 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 87.56
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ID: 642775
Weight: 1.22ct
Size: 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 57.10
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ID: 383757
Weight: 1.42ct
Size: 15.7 x 3.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 35.80
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ID: 460621
Weight: 6.04ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 55.81
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ID: 660018
Weight: 1.30ct
Size: 6.3 x 6.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 3.13
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ID: 728240
Weight: 2.74ct (total)
Size: 6.9 x 5.9 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 16.44
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ID: 492418
Weight: 4.60ct
Size: 14.1 x 11 mm
Clarity: Translucent
Content: 1 pc
Price: $ 17.30
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ID: 686772
Weight: 0.37ct
Size: 4.4 x 4 mm
Clarity: VS
Content: 1 pc
Price: $ 25.90
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ID: 656769
Weight: 2.08ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 12.48
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ID: 439425
Weight: 7.67ct
Size: 12.9 x 11.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 151.87
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ID: 519571
Weight: 1.24ct
Size: 7.3 x 5.9 mm
Clarity: VS
Content: 1 pc
Price: $ 24.55
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ID: 712483
Weight: 4.62ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 12.31
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ID: 621772
Weight: 1.00ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 21.02
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ID: 707835
Weight: 5.17ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 37.22
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ID: 708047
Weight: 3.82ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 3.67
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ID: 669020
Weight: 0.78ct
Size: 5.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 748.80
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ID: 485295
Weight: 4.30ct (total)
Size: 7.7 x 7.4 mm
Clarity: Translucent
Content: 4 pcs
Price: $ 22.70
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ID: 565673
Weight: 1.07ct
Size: 6.6 x 4.7 mm
Clarity: VS
Content: 1 pc
Price: $ 24.36
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ID: 387773
Weight: 2.76ct (total)
Size: 4.6 x 4.5 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 18.22
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ID: 668113
Weight: 41.95ct
Size: 25.4 x 16.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 251.70
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ID: 358155
Weight: 4.10ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 10 pcs
Price: $ 27.06
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ID: 727933
Weight: 1.67ct
Size: 6.7 x 6.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.02
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ID: 719061
Weight: 3.18ct
Size: 8.9 x 7.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 79.50
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ID: 476908
Weight: 11.45ct
Size: 13 x 10 mm
Clarity: Opaque
Content: 1 pc
Price: $ 45.35
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ID: 700880
Weight: 0.70ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Price: $ 6.72
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ID: 686297
Weight: 0.27ct
Size: 5.6 x 2.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 17.82
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ID: 664117
Weight: 1.37ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 9.59
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ID: 463452
Weight: 1.27ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.15
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ID: 699541
Weight: 0.84ct
Size: 6.2 x 5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 36.19
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ID: 721833
Weight: 9.98ct
Size: 15.1 x 13.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.98
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ID: 687569
Weight: 6.17ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 7.40
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ID: 700193
Weight: 0.96ct
Size: 5.9 x 5 mm
Clarity: VVS
Content: 1 pc
Price: $ 41.35
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ID: 713676
Weight: 1.18ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 9.91
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ID: 734964
Weight: 4.50ct
Size: 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 22.50
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ID: 536170
Weight: 1.56ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS-VS
Price: $ 12.36
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ID: 539007
Weight: 4.04ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 37.33
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ID: 699628
Weight: 0.91ct
Size: 5.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 54.60
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ID: 622349
Weight: 0.92ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 17.00
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ID: 428269
Weight: 39.82ct
Size: 30.6 x 28.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 35.22
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ID: 737356
Weight: 3.99ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 179.55
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ID: 333704
Weight: 2.65ct (total)
Size: 3 x 2.8 mm
Clarity: Transparent
Content: 20 pcs
Price: $ 90.95
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ID: 528903
Weight: 1.11ct
Size: 7.9 x 4.7 mm
Clarity: SI
Content: 1 pc
Price: $ 80.59
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ID: 520291
Weight: 9.04ct
Size: 18 x 13 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 85.68
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ID: 693454
Weight: 22.42ct
Size: 40.2 x 8.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.08
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ID: 672431
Weight: 1.77ct
Size: 8 x 6.7 mm
Clarity: VS
Content: 1 pc
Price: $ 42.48
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ID: 473324
Weight: 0.80ct
Size: 9.9 x 5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 58.08
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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

Site is easy to navigate and the variety is great and how often new products are added is also great.

Posted By Jhidron 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

easy site to navigate

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

Overall Rating -> 10 star ratings

Everything went well, the payment options are easily declined but, but once sorted out, everything is smooth. I have bought from GemSelect before and am consistently satisfied with them.

Posted By Gabe in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I always enjoy the selection and the unique cuts I can find here. I would love to see more hex cuts tho! Maybe some rose cuts too!

Posted By Blkfower83 in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

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

Posted By Ibie 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 would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 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 -> 10 star ratings

Site is easy to navigate and the variety is great and how often new products are added is also great.

Posted By Jhidron 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

easy site to navigate

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

Overall Rating -> 10 star ratings

Everything went well, the payment options are easily declined but, but once sorted out, everything is smooth. I have bought from GemSelect before and am consistently satisfied with them.

Posted By Gabe in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I always enjoy the selection and the unique cuts I can find here. I would love to see more hex cuts tho! Maybe some rose cuts too!

Posted By Blkfower83 in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

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

Posted By Ibie 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 would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 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