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

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ID: 431297
Weight: 1.53ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 16.13
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ID: 430369
Weight: 2.45ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 16.18
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ID: 663367
Weight: 3.17ct
Size: 14 x 7.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 26.63
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ID: 693046
Weight: 43.87ct
Size: 36.1 x 12.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.79
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ID: 326398
Weight: 6.48ct (total)
Size: 10.6 x 8.5 mm
Clarity: Transparent/Translucent
Content: 2 pcs
Price: $ 21.38
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ID: 699119
Weight: 2.79ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 23.44
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ID: 720957
Weight: 11.58ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.90
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ID: 650930
Weight: 3.15ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 26.46
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ID: 479106
Weight: 2.66ct (total)
Size: 10.1 x 5.2 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 28.09
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ID: 673699
Weight: 1.13ct
Size: 9.3 x 6.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 39.55
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ID: 648268
Weight: 1.30ct
Size: 7 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 34.32
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ID: 699624
Weight: 0.80ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.68
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ID: 394922
Weight: 3.71ct
Size: 9.5 x 9.4 mm
Clarity: VS
Content: 1 pc
Price: $ 24.49
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ID: 479103
Weight: 2.71ct (total)
Size: 10.1 x 5.2 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 28.62
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ID: 725006
Weight: 5.84ct
Size: 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 6.66
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ID: 451429
Weight: 4.78ct
Size: 12 x 11.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.86
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ID: 476850
Weight: 13.76ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 54.49
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ID: 731021
Weight: 11.39ct (total)
Size: 16.9 x 13.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 7.79
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ID: 645189
Weight: 2.12ct
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 12.04
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ID: 684816
Weight: 19.46ct
Size: 23.6 x 18.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.38
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ID: 363285
Weight: 6.37ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 58.86
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ID: 606868
Weight: 31.90ct (total)
Size: 17.7 x 14.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 49.68
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ID: 585684
Weight: 17.86ct
Size: 20 x 20 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 117.88
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ID: 686147
Weight: 0.14ct
Size: 3 x 3 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 6.72
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ID: 438066
Weight: 0.99ct
Size: 16.5 x 3 mm
Clarity: VS
Content: 1 pc
Price: $ 32.68
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ID: 728060
Weight: 1.86ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 11.16
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ID: 482354
Weight: 3.01ct (total)
Size: 5.2 x 3.1 mm
Clarity: VS
Content: 15 pcs
Price: $ 198.66
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ID: 692634
Weight: 118.72ct
Size: 31.1 x 30.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 49.86
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ID: 463299
Weight: 1.36ct
Size: 7 x 4.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 26.93
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ID: 650578
Weight: 3.24ct (total)
Size: 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 27.22
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ID: 673066
Weight: 1.07ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 25.68
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ID: 358188
Weight: 1.69ct
Size: 8.7 x 5.7 mm
Clarity: VS
Content: 1 pc
Price: $ 44.84
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ID: 459833
Weight: 4.43ct
Size: 15 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 40.93
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ID: 396254
Weight: 1.64ct
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 80.42
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ID: 392988
Weight: 3.25ct (total)
Size: 6.5 x 6.3 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 85.80
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ID: 705846
Weight: 0.73ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS
Price: $ 6.13
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ID: 694314
Weight: 0.78ct
Size: 11 x 3.4 mm
Clarity: VVS
Content: 1 pc
Price: $ 23.40
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ID: 726816
Weight: 1.01ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 30.30
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ID: 447538
Weight: 2.00ct
Size: 7.4 x 7.2 mm
Clarity: VS
Content: 1 pc
Price: $ 94.88
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ID: 497233
Weight: 2.61ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 31.01
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ID: 410274
Weight: 5.61ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 37.03
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ID: 318555
Weight: 3.30ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 159.72
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ID: 496782
Weight: 2.36ct
Size: 9 x 7.5 mm
Clarity: VS
Content: 1 pc
Price: $ 62.30
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ID: 726874
Weight: 0.52ct
Size: 6.7 x 4.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 15.60
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ID: 645538
Weight: 13.73ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 67.88
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ID: 700745
Weight: 1.11ct
Size: 6.3 x 5.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 47.82
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ID: 699082
Weight: 1.07ct
Size: 7.5 x 5.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 8.99
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ID: 394630
Weight: 1.16ct
Size: 8 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 57.02
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ID: 734817
Weight: 4.32ct
Size: 11 x 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 25.92
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ID: 706919
Weight: 2.10ct
Size: 8 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.04
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ID: 426708
Weight: 9.58ct (total)
Size: 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 44.26
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ID: 678022
Weight: 0.04ct
Size: 2 x 1.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 24.00
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ID: 569273
Weight: 2.31ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 45.92
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ID: 478614
Weight: 0.50ct
Size: 4.6 x 4.6 mm
Clarity: VS
Content: 1 pc
Price: $ 21.14
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ID: 474610
Weight: 27.12ct (total)
Size: 21.9 x 15.8 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 64.44
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ID: 691918
Weight: 0.70ct
Size: 5.6 x 4.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 58.80
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ID: 675193
Weight: 14.17ct
Size: 17.2 x 13.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.56
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ID: 691781
Weight: 26.72ct
Size: 19.5 x 13.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.35
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ID: 494582
Weight: 3.09ct
Size: 10.1 x 7.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 28.55
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ID: 502900
Weight: 1.59ct
Size: 10 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 12.59
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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

I found what I was looking for...had to look up millimeters to inches. It would be nice to see something, like a quarter, in the pix to show relative size. I plan on buy loose gemstones for every month in the calendar

Posted By TheP in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.

Posted By Tim in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones..

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Im not a jeweler, I buy for my personal use. My dad was a jewelry maker and I love gemstones.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I'm happy.

Posted By Ray in January, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

Posted By Dia 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 -> 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

I found what I was looking for...had to look up millimeters to inches. It would be nice to see something, like a quarter, in the pix to show relative size. I plan on buy loose gemstones for every month in the calendar

Posted By TheP in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.

Posted By Tim in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones..

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Im not a jeweler, I buy for my personal use. My dad was a jewelry maker and I love gemstones.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I'm happy.

Posted By Ray in January, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

Posted By Dia 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