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

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ID: 617892
Weight: 4.91ct
Size: 21.8 x 6.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.41
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ID: 700088
Weight: 2.05ct
Size: 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 123.00
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ID: 346839
Weight: 45.79ct
Size: 34.6 x 27.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.44
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ID: 381313
Weight: 1.89ct (total)
Size: 3.7 x 3.8 mm
Clarity: VS
Content: 5 pcs
Price: $ 48.44
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ID: 574250
Weight: 2.51ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 23.20
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ID: 478025
Weight: 46.39ct
Size: 38.4 x 22 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.46
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ID: 512796
Weight: 2.72ct
Size: 9.4 x 7.8 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 58.85
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ID: 392307
Weight: 72.94ct
Size: 35.2 x 23.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 70.02
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ID: 687435
Weight: 0.33ct
Size: 4 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.84
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ID: 314624
Weight: 2.85ct (total)
Size: 3 x 3 mm (calibrated)
Clarity: Transparent
Content: 20 pcs
Price: $ 63.96
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ID: 401592
Weight: 1.96ct (total)
Size: 4.3 mm
Clarity: VVS-VS
Content: 4 pcs
Price: $ 80.21
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ID: 472755
Weight: 7.10ct
Size: 18.2 x 11.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 98.32
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ID: 726081
Weight: 1.48ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 58.62
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ID: 551442
Weight: 2.78ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.10
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ID: 389367
Weight: 1.35ct
Size: 9 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 89.10
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ID: 685603
Weight: 0.08ct (total)
Size: 2 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 23.34
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ID: 564406
Weight: 2.09ct (total)
Size: 7.7 x 5.9 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 31.84
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ID: 460360
Weight: 3.40ct
Size: 11.2 x 8.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 37.40
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ID: 724426
Weight: 57.88ct
Size: 30 x 22 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 522.31
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ID: 713945
Weight: 0.78ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 13.10
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ID: 599824
Weight: 2.23ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 20.60
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ID: 427171
Weight: 1.17ct
Size: 9 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 13.85
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ID: 498619
Weight: 0.98ct
Size: 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 51.74
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ID: 721732
Weight: 43.24ct
Size: 32.3 x 23.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 51.89
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ID: 465998
Weight: 7.20ct
Size: 14 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 14.26
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ID: 567239
Weight: 2.40ct
Size: 7 x 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 53.86
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ID: 399842
Weight: 4.10ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 202.25
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ID: 484222
Weight: 1.36ct
Size: 7.4 x 5.8 mm
Clarity: VS
Content: 1 pc
Price: $ 17.95
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ID: 670941
Weight: 0.94ct
Size: 5.5 x 4.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 33.84
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ID: 449247
Weight: 1.00ct
Size: 13.5 x 3.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 39.60
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ID: 635829
Weight: 3.50ct
Size: 12 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 17.98
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ID: 551473
Weight: 3.15ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.45
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ID: 529672
Weight: 16.02ct
Size: 19.1 x 14.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 51.35
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ID: 564204
Weight: 0.90ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 13.72
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ID: 662703
Weight: 1.53ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 36.72
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ID: 455513
Weight: 22.09ct (total)
Size: 21.3 x 12.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 29.16
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ID: 388047
Weight: 3.00ct (total)
Size: 4.6 x 4.5 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 19.80
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ID: 702076
Weight: 10.23ct
Size: 16.7 x 9.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 61.38
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ID: 495349
Weight: 2.06ct
Size: 8.4 x 7 mm
Clarity: VS
Content: 1 pc
Price: $ 44.16
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ID: 650398
Weight: 23.41ct
Size: 30.1 x 19.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 14.05
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ID: 693963
Weight: 5.87ct
Size: 13 x 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 21.13
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ID: 456329
Weight: 3.32ct
Size: 12.1 x 7.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 30.67
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ID: 697177
Weight: 1.79ct
Size: 12 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 54.24
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ID: 623795
Weight: 0.98ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 71.15
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ID: 686134
Weight: 3.64ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 4.37
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ID: 474528
Weight: 2.68ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 5 pcs
Price: $ 80.40
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ID: 472044
Weight: 33.53ct
Size: 29.8 x 19.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 11.80
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ID: 711274
Weight: 11.69ct
Size: 24.5 x 11.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 23.29
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ID: 714357
Weight: 0.52ct
Size: 4.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 15.60
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ID: 424324
Weight: 11.22ct
Size: 14.9 x 10.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 385.67
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ID: 709186
Weight: 2.29ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 15.53
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ID: 674251
Weight: 0.87ct
Size: 8.8 x 6.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 30.45
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ID: 699630
Weight: 0.43ct
Size: 4.5 x 4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 25.80
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ID: 609294
Weight: 15.52ct
Size: 24 x 14.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 20.48
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ID: 447717
Weight: 1.42ct
Size: 6.9 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 902.22
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ID: 451000
Weight: 2.62ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 24.20
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ID: 395943
Weight: 2.67ct
Size: 9 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 58.74
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ID: 719934
Weight: 2.93ct
Size: 7.9 x 7.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 87.90
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ID: 397383
Weight: 9.25ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 61.06
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ID: 707967
Weight: 2.51ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.15
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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

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found the website easy to work with. The gemstones are lovely.

Posted By Sophie-Tiger in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Loved everything. High quality, quick shipping, and authentication included.

Posted By Chris in March, 2025
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 -> 8 star ratings

great experience

Posted By T in December, 2024
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 -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 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

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

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found the website easy to work with. The gemstones are lovely.

Posted By Sophie-Tiger in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Loved everything. High quality, quick shipping, and authentication included.

Posted By Chris in March, 2025
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 -> 8 star ratings

great experience

Posted By T in December, 2024
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 -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 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

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