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

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ID: 712102
Weight: 2.31ct
Size: 12 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 6.16
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ID: 394103
Weight: 2.98ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 54.88
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ID: 720288
Weight: 1.00ct
Size: 5.8 x 5 mm
Clarity: VS
Content: 1 pc
Price: $ 96.25
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ID: 484347
Weight: 1.31ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 15.72
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ID: 408345
Weight: 10.43ct
Size: 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 24.65
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ID: 508537
Weight: 2.18ct
Size: 13.5 x 4.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 183.12
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ID: 564199
Weight: 0.90ct
Size: 7.3 x 6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 13.72
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ID: 539886
Weight: 1.00ct
Size: 5 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 20.21
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ID: 722824
Weight: 0.54ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 16.20
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ID: 448491
Weight: 1197.38ct
Size: 52.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 718.43
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ID: 719023
Weight: 0.64ct
Size: 5 x 4 mm (calibrated)
Clarity: VVS
Price: $ 11.52
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ID: 417943
Weight: 2.39ct (total)
Size: 5 x 3.3 mm
Clarity: VS
Content: 6 pcs
Price: $ 97.80
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ID: 524290
Weight: 26.81ct (total)
Size: 26.5 x 14.4 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 579.32
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ID: 475367
Weight: 7.19ct
Size: 16 x 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 66.43
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ID: 735996
Weight: 38.52ct
Size: 32.1 x 21.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 31.90
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ID: 644426
Weight: 3.04ct (total)
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 8.03
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ID: 725458
Weight: 5.21ct
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 5.94
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ID: 568976
Weight: 2.03ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 40.36
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ID: 735225
Weight: 2.35ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 112.80
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ID: 617612
Weight: 27.47ct
Size: 30.5 x 21 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.11
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ID: 689080
Weight: 0.59ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 17.70
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ID: 393570
Weight: 3.05ct
Size: 9 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 20.14
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ID: 686087
Weight: 1.16ct (total)
Size: 6 x 4.2 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 25.06
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ID: 570042
Weight: 2.18ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 51.79
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ID: 699048
Weight: 0.95ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.98
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ID: 609753
Weight: 1.77ct (total)
Size: 6.3 x 6 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 16.36
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ID: 497578
Weight: 1.79ct
Size: 7.8 x 6.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 47.26
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ID: 572474
Weight: 3.01ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Price: $ 27.82
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ID: 663736
Weight: 2.42ct
Size: 7.9 x 6.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 11.62
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ID: 672455
Weight: 2.15ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 51.60
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ID: 727230
Weight: 0.73ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.14
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ID: 342042
Weight: 4.17ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 38.53
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ID: 678049
Weight: 0.34ct (total)
Size: 2.7 x 2.5 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 204.00
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ID: 443380
Weight: 8.61ct (total)
Size: 11 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 28.30
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ID: 653435
Weight: 9.49ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 22.78
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ID: 601427
Weight: 15.46ct
Size: 18 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 75.10
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ID: 636955
Weight: 25.49ct (total)
Size: 20.2 x 10.1 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 91.76
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ID: 437934
Weight: 1.24ct
Size: 16.5 x 3.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.92
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ID: 456764
Weight: 1.81ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 16.73
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ID: 598314
Weight: 1.61ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 31.88
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ID: 714375
Weight: 0.72ct (total)
Size: 4.3 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 21.60
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ID: 728369
Weight: 31.16ct
Size: 42.7 x 20.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 63.56
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ID: 734760
Weight: 4.13ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 173.46
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ID: 705848
Weight: 0.79ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS
Price: $ 6.64
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ID: 456662
Weight: 2.75ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 25.42
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ID: 692441
Weight: 33.30ct
Size: 30.7 x 20.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 16.65
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ID: 643531
Weight: 8.67ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 65.72
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ID: 721407
Weight: 27.95ct
Size: 27 x 18 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.54
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ID: 596687
Weight: 21.36ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 188.34
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ID: 542545
Weight: 0.83ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.76
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ID: 352657
Weight: 5.31ct
Size: 16.3 x 8.5 mm
Clarity: VS
Content: 1 pc
Price: $ 49.07
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ID: 553723
Weight: 2.03ct
Size: 8.5 x 6.1 mm
Clarity: SI
Content: 1 pc
Price: $ 45.88
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ID: 521621
Weight: 31.32ct
Size: 33.5 x 10.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.74
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ID: 681918
Weight: 0.88ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.84
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ID: 448260
Weight: 3.00ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 15.84
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ID: 698705
Weight: 3.18ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.71
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ID: 395811
Weight: 7.91ct
Size: 11 x 11 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 387.58
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ID: 730228
Weight: 2.73ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.44
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ID: 571009
Weight: 0.80ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 7.39
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ID: 694501
Weight: 13.91ct
Size: 15 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 116.84
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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 love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
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

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 -> 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

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 6mmThanks

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 -> 10 star ratings

I love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
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

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 -> 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

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 6mmThanks

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