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

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ID: 676877
Weight: 0.04ct
Size: 2.1 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 15.70
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ID: 348799
Weight: 52.73ct
Size: 24 x 23.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 69.60
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ID: 677850
Weight: avg. 0.12 ct / each
Size: 2.5 x 2.4 mm
Clarity: Opaque
Price: $ 60.75
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ID: 407300
Weight: 8.82ct
Size: 14.1 x 13.2 mm
Clarity: VS
Content: 1 pc
Price: $ 402.35
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ID: 384010
Weight: 20.43ct
Size: 18 x 13 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 735.48
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ID: 433017
Weight: 76.12ct
Size: 41.4 x 34.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 73.08
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ID: 381632
Weight: 1.89ct
Size: 9.5 x 6.9 mm
Clarity: VS
Content: 1 pc
Price: $ 187.66
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ID: 588862
Weight: 83.59ct
Size: 55.2 x 35.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 283.87
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ID: 434939
Weight: 61.05ct
Size: 29.5 x 28.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 120.88
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ID: 348781
Weight: 73.69ct
Size: 43 x 25.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 97.27
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ID: 491639
Weight: 11.45ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 27.96
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ID: 668453
Weight: 44.07ct
Size: 37.3 x 11.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 264.42
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ID: 559192
Weight: 2.45ct
Size: 9 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 41.91
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ID: 645315
Weight: 24.46ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 14.68
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ID: 436951
Weight: 1.54ct
Size: 6.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 33.88
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ID: 391994
Weight: 40.83ct
Size: 27.6 x 27.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.89
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ID: 536904
Weight: avg. 0.81 ct / each
Size: 7 mm (calibrated)
Clarity: Transparent
Price: $ 19.73
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ID: 564568
Weight: 0.51ct (total)
Size: 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 849.81
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ID: 478398
Weight: 1.84ct
Size: 13.8 x 6.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 77.28
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ID: 447906
Weight: 71.86ct
Size: 43.1 x 31 mm
Clarity: Opaque
Content: 1 pc
Price: $ 86.23
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ID: 608485
Weight: 7.82ct (total)
Size: 10 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 144.52
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ID: 693994
Weight: 1.36ct
Size: 6.4 x 5.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 68.00
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ID: 543913
Weight: 0.17ct
Size: 3.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 369.49
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ID: 485314
Weight: 6.68ct
Size: 14 x 14 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 35.27
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ID: 475557
Weight: 20.07ct
Size: 29.2 x 18.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 39.74
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ID: 558620
Weight: 0.79ct
Size: 5.5 x 4.5 mm
Clarity: VS
Content: 1 pc
Price: $ 47.83
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ID: 679953
Weight: 31.99ct
Size: 23.1 x 15.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 255.92
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ID: 617796
Weight: 36.66ct
Size: 45.9 x 26.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 34.85
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ID: 514339
Weight: 40.40ct (total)
Size: 25.1 x 16.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 105.59
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ID: 644279
Weight: 0.87ct
Size: 6.5 x 5.4 mm
Clarity: VVS
Price: $ 7.31
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ID: 650671
Weight: 20.48ct
Size: 28.2 x 19.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 48.13
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ID: 488302
Weight: 92.51ct
Size: 56.4 x 32 mm
Clarity: Opaque
Content: 1 pc
Price: $ 68.39
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ID: 333530
Weight: 24.56ct
Size: 19.5 x 19.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 421.45
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ID: 640471
Weight: 0.31ct
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 12.40
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ID: 411372
Weight: 3.94ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 117.38
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ID: 501492
Weight: 17.32ct
Size: 33.2 x 18.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 34.30
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ID: 339643
Weight: 8.07ct
Size: 14 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 74.99
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ID: 656737
Weight: avg. 2.17 ct / each
Size: 12 x 6 mm (calibrated)
Clarity: Opaque
Price: $ 2.56
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ID: 422630
Weight: 1.04ct
Size: 6.4 x 5.3 mm
Clarity: VS
Content: 1 pc
Price: $ 778.20
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ID: 514981
Weight: 8.81ct
Size: 16 x 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 67.84
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ID: 715332
Weight: 1.67ct
Size: 7.8 x 5.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 240.48
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ID: 394309
Weight: 58.83ct
Size: 41.4 x 25.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 77.65
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ID: 645844
Weight: 41.69ct
Size: 26.2 x 19 mm
Clarity: Opaque
Content: 1 pc
Price: $ 130.07
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ID: 366580
Weight: 1.15ct
Size: 8.6 x 5.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 161.47
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ID: 530144
Weight: 1.38ct
Size: 6.8 x 6.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 129.26
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ID: 711718
Weight: 33.60ct
Size: 25 mm
Clarity: Translucent
Content: 1 pc
Price: $ 89.51
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ID: 690770
Weight: 2.55ct
Size: 8.5 mm (calibrated)
Clarity: I1
Content: 1 pc
Price: $ 153.00
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ID: 528920
Weight: 22.77ct
Size: 33.4 x 9.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 12.53
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ID: 684243
Weight: 21.85ct
Size: 24 x 21.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 28.06
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ID: 503747
Weight: 4.54ct (total)
Size: 8 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 41.95
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ID: 407919
Weight: 3.95ct
Size: 13 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 156.42
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ID: 509004
Weight: 30.84ct
Size: 25 x 15.4 mm
Clarity: VVS
Content: 1 pc
Price: $ 244.25
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ID: 690765
Weight: 5.04ct
Size: 11 x 7.4 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 302.40
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ID: 550359
Weight: 23.45ct (total)
Size: 20 x 12.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 35.28
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ID: 419786
Weight: 2.64ct
Size: 5.8 x 9.4 mm
Clarity: VS
Content: 1 pc
Price: $ 313.63
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ID: 381928
Weight: 3.66ct (total)
Size: 3.7 mm
Clarity: VS
Content: 20 pcs
Price: $ 193.68
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ID: 339641
Weight: 7.69ct
Size: 14 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 64.97
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ID: 678766
Weight: 21.16ct
Size: 25.6 x 16.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 126.96
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ID: 694535
Weight: 37.43ct
Size: 32.8 x 22.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 40.43
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ID: 606011
Weight: 11.09ct
Size: 18.9 x 13.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 146.39
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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 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 have ordered from Genselect before and always had a great experience. My go to source!

Posted By Kycaver in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 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

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'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

easy site to navigate

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

Overall Rating -> 9 star ratings

I wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Ive been looking for a place to buy loose gemstones for years and was thrilled when I found this site

Posted By Bern in October, 2024
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 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 have ordered from Genselect before and always had a great experience. My go to source!

Posted By Kycaver in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 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

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'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

easy site to navigate

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

Overall Rating -> 9 star ratings

I wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Ive been looking for a place to buy loose gemstones for years and was thrilled when I found this site

Posted By Bern in October, 2024
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