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

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ID: 446730
Weight: 11.22ct (total)
Size: 13 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 37.03
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ID: 341958
Weight: 14.18ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 18.43
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ID: 728183
Weight: 2.34ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 5.62
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ID: 708493
Weight: 1.51ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 31.19
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ID: 639213
Weight: 3.00ct
Size: 12.8 x 7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 14.87
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ID: 688214
Weight: 9.09ct (total)
Size: 20 x 9.6 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 26.83
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ID: 727911
Weight: 1.23ct
Size: 7 x 5.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 7.38
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ID: 449379
Weight: 12.72ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 33.58
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ID: 451217
Weight: 1.54ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 14.23
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ID: 567398
Weight: 0.15ct (total)
Size: 2.7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 323.09
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ID: 501045
Weight: 5.93ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 54.79
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ID: 659867
Weight: 2.28ct
Size: 7 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 5.50
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ID: 594828
Weight: 1.02ct
Size: 5 x 5 mm (calibrated)
Clarity: SI
Price: $ 24.24
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ID: 419936
Weight: 0.99ct
Size: 6.2 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 45.74
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ID: 393622
Weight: 5.87ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 38.75
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ID: 673543
Weight: 1.35ct
Size: 8.8 x 6.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 32.40
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ID: 716353
Weight: 2.78ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.69
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ID: 338182
Weight: 6.74ct
Size: 10.4 x 10.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.25
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ID: 498847
Weight: 1.37ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 47.21
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ID: 547624
Weight: 2.47ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 50.04
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ID: 456413
Weight: 1.92ct
Size: 10.5 x 7.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 17.74
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ID: 621907
Weight: 1.69ct
Size: 8.1 x 6.4 mm
Clarity: VS
Content: 1 pc
Price: $ 35.53
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ID: 486658
Weight: 3.69ct
Size: 11.8 x 8.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 34.22
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ID: 394106
Weight: 2.61ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 43.69
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ID: 662639
Weight: 2.16ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 51.84
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ID: 660195
Weight: 19.40ct (total)
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 23.28
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ID: 606039
Weight: 23.89ct
Size: 24.3 x 16 mm
Clarity: VS
Content: 1 pc
Price: $ 220.74
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ID: 732117
Weight: 0.94ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 36.10
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ID: 707983
Weight: 4.80ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 4.61
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ID: 382943
Weight: 12.48ct
Size: 17.2 x 11.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 32.95
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ID: 546648
Weight: 3.02ct
Size: 11 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 23.92
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ID: 476475
Weight: 7.04ct
Size: 16 x 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 65.05
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ID: 663002
Weight: 0.87ct
Size: 6.1 x 5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 5.22
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ID: 514078
Weight: 6.97ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 65.60
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ID: 472516
Weight: 7.44ct
Size: 12.1 x 10.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 29.46
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ID: 717958
Weight: 0.87ct
Size: 5.9 x 4.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.10
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ID: 624991
Weight: 2.72ct
Size: 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.75
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ID: 621016
Weight: 25.42ct (total)
Size: 20 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 67.10
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ID: 609093
Weight: 2.19ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 65.70
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ID: 716405
Weight: 0.76ct
Size: 6 x 5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 48.34
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ID: 694479
Weight: 19.54ct
Size: 18 x 18 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 164.14
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ID: 715530
Weight: 0.36ct
Size: 5.6 x 4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 22.90
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ID: 306914
Weight: 3.54ct (total)
Size: 3 x 3 mm (calibrated)
Clarity: Transparent
Content: 20 pcs
Price: $ 72.22
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ID: 620760
Weight: 2.06ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: SI
Content: 2 pcs
Price: $ 46.97
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ID: 682547
Weight: 5.90ct
Size: 15.6 x 7.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 56.64
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ID: 358297
Weight: 3.84ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 10 pcs
Price: $ 25.34
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ID: 690237
Weight: 66.20ct
Size: 39.1 x 26.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 66.00
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ID: 480067
Weight: 2.19ct
Size: 8.4 x 8.2 mm
Clarity: Transparent
Price: $ 20.23
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ID: 688389
Weight: 4.94ct
Size: 10.8 x 8.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 5.93
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ID: 667935
Weight: 51.46ct
Size: 38.3 x 25.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 185.26
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ID: 735774
Weight: 37.16ct
Size: 38.1 x 20.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 30.77
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ID: 406960
Weight: 14.85ct
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 55.28
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ID: 715353
Weight: 12.36ct
Size: 18 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 118.66
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ID: 711047
Weight: 11.01ct
Size: 19.1 x 12.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.82
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ID: 416390
Weight: 1.20ct
Size: 17.5 x 3.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.02
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ID: 466386
Weight: 8.39ct (total)
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 5 pcs
Price: $ 310.09
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ID: 492486
Weight: 4.75ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 34.36
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ID: 428078
Weight: 3.83ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 10.12
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ID: 485178
Weight: 9.52ct
Size: 16 x 16 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 25.13
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ID: 436383
Weight: 2.72ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 8.83
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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

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
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

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

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

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 -> 8 star ratings

Excellent selection of stones -including ones I had never heard of before -nice site and fairly easy to use

Posted By DrD in May, 2025
Source: Bizrate

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 like the way your website shows us what stone were buying as well the easy way to navigate the site. also knowing the stones are real...

Posted By RED in January, 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

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
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

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

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

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 -> 8 star ratings

Excellent selection of stones -including ones I had never heard of before -nice site and fairly easy to use

Posted By DrD in May, 2025
Source: Bizrate

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 like the way your website shows us what stone were buying as well the easy way to navigate the site. also knowing the stones are real...

Posted By RED in January, 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