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

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ID: 414149
Weight: 71.96ct
Size: 24.7 x 20.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 284.96
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ID: 606840
Weight: 25.62ct (total)
Size: 17.8 x 12.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 39.90
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ID: 511711
Weight: 0.79ct
Size: 5.5 x 4.1 mm
Clarity: VS
Content: 1 pc
Price: $ 46.93
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ID: 559395
Weight: 1.81ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 37.16
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ID: 491083
Weight: 5.77ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 4 pcs
Price: $ 16.99
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ID: 522778
Weight: 12.66ct
Size: 23.2 x 13.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 100.27
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ID: 473807
Weight: 0.58ct
Size: 8.3 x 4.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 42.11
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ID: 328311
Weight: 13.94ct (total)
Size: 12 x 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 92.00
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ID: 595178
Weight: 1.43ct
Size: 7.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 132.13
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ID: 710226
Weight: 2.87ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 24.11
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ID: 686045
Weight: 0.65ct
Size: 5.2 x 4.6 mm
Clarity: VS
Content: 1 pc
Price: $ 54.60
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ID: 706889
Weight: 2.17ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.21
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ID: 712654
Weight: 5.37ct
Size: 16 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 14.30
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ID: 695870
Weight: 2.74ct
Size: 9.5 x 6.7 mm
Clarity: VS
Content: 1 pc
Price: $ 82.20
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ID: 732989
Weight: 1.29ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 30.96
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ID: 691882
Weight: 0.53ct
Size: 4.8 x 4.4 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 31.80
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ID: 394310
Weight: 62.40ct
Size: 42.6 x 35.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.90
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ID: 701913
Weight: 8.92ct
Size: 20.8 x 7.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.52
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ID: 435749
Weight: 7.62ct
Size: 16 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.95
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ID: 643492
Weight: 2.25ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 5.94
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ID: 706807
Weight: 2.02ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.85
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ID: 499516
Weight: 14.00ct
Size: 17.8 x 14.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 92.40
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ID: 734970
Weight: 5.70ct
Size: 11 x 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 28.50
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ID: 730116
Weight: 0.98ct
Size: 9.2 x 3.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 58.80
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ID: 675206
Weight: 35.72ct
Size: 36.6 x 21.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.15
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ID: 721941
Weight: 1.01ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 18.18
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ID: 713914
Weight: 18.54ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 155.74
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ID: 317459
Weight: 0.85ct
Size: 7 x 4.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 31.42
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ID: 731024
Weight: 15.87ct (total)
Size: 20.5 x 12.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 10.86
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ID: 737497
Weight: 1.76ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 44.00
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ID: 615521
Weight: 1.30ct (total)
Size: 5 mm (calibrated)
Clarity: SI
Content: 2 pcs
Price: $ 24.70
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ID: 460526
Weight: 2.88ct
Size: 13 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 26.62
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ID: 478380
Weight: 0.80ct
Size: 7.9 x 4.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 33.83
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ID: 498891
Weight: 1.80ct (total)
Size: 5.1 x 4.2 mm
Clarity: VS-SI
Content: 4 pcs
Price: $ 237.60
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ID: 392662
Weight: 12.72ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 83.95
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ID: 697050
Weight: 17.45ct
Size: 29.2 x 14.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.94
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ID: 650889
Weight: 22.32ct
Size: 28 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.39
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ID: 491630
Weight: 11.80ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 34.58
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ID: 687925
Weight: 36.66ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 43.99
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ID: 690808
Weight: 0.27ct
Size: 3.7 x 3.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 10.30
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ID: 584804
Weight: 0.98ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 64.68
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ID: 737147
Weight: 3.55ct
Size: 10.9 x 8.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 17.75
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ID: 453033
Weight: 5.42ct
Size: 10.9 x 9.8 mm
Clarity: VS
Content: 1 pc
Price: $ 943.08
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ID: 643802
Weight: 1.22ct
Size: 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 10.25
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ID: 643805
Weight: 1.27ct
Size: 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 10.67
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ID: 333533
Weight: 68.24ct (total)
Size: 23.5 x 19.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 1,171.00
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ID: 498100
Weight: 22.26ct (total)
Size: 20 x 12.9 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 30.56
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ID: 481494
Weight: 63.09ct
Size: 35.2 x 23.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 44.98
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ID: 549169
Weight: 3.75ct
Size: 9 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.76
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ID: 451030
Weight: 1.52ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 14.04
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ID: 483926
Weight: 2.38ct
Size: 8.3 x 6.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 37.88
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ID: 725019
Weight: 27.56ct
Size: 27.9 x 15.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 99.22
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ID: 648477
Weight: 2.12ct (total)
Size: 7 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 17.81
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ID: 648647
Weight: 19.85ct
Size: 25.8 x 19.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.44
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ID: 434997
Weight: 37.25ct
Size: 25.5 x 23.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 49.18
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ID: 393821
Weight: 0.81ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 40.33
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ID: 705834
Weight: 1.45ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 12.18
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ID: 635465
Weight: 2.11ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 60.77
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ID: 639714
Weight: 1.03ct
Size: 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 25.84
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ID: 387888
Weight: 2.95ct (total)
Size: 4.6 x 4.5 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 19.48
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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 have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Muy serios y muy oportunos para el envo

Posted By Veronica in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and convenient

Posted By Butch in September, 2024
Source: Bizrate

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

It was my second time so I understand what it is to do

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 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

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

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 have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Muy serios y muy oportunos para el envo

Posted By Veronica in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and convenient

Posted By Butch in September, 2024
Source: Bizrate

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

It was my second time so I understand what it is to do

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 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

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

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