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

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

Discover loose untreated gemstones in our curated selection. Find unheated sapphires, untreated rubies, and virgin untreated stones, our collection highlights the beauty of nature’s finest treasures. Perfect for engagement rings, heirloom pieces, or collectors, our certified untreated gems and GIA-certified natural gems ensure authenticity and quality. Experience the allure of authentic untreated crystals and precious untreated gemstones today.

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ID: 409989
Weight: 2.94ct (total)
Size: 7.7 x 5 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 14.04
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ID: 326518
Weight: 20.18ct
Size: 23.7 x 14 mm
Clarity: Transparent
Content: 1 pc
Price: $ 66.60
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ID: 526850
Weight: 2.47ct
Size: 8.8 x 7.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 149.44
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ID: 390039
Weight: 1.35ct
Size: 10.5 x 3.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 87.47
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ID: 636958
Weight: 29.48ct (total)
Size: 20 x 10.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 106.13
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ID: 595266
Weight: 26.05ct
Size: 19.7 x 19.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 85.97
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ID: 438378
Weight: 13.79ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 54.61
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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: 351445
Weight: 10.14ct
Size: 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 53.54
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ID: 442155
Weight: 3.89ct (total)
Size: 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 85.58
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ID: 366578
Weight: 1.03ct
Size: 8.4 x 5.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 144.62
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ID: 568868
Weight: 14.98ct
Size: 17.5 x 14.6 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 810.72
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ID: 694699
Weight: 5.87ct
Size: 12.4 x 7.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 146.75
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ID: 626169
Weight: 0.99ct
Size: 7.7 x 4.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 3.92
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ID: 408327
Weight: 2.89ct
Size: 9.6 x 8.3 mm
Clarity: VS
Content: 1 pc
Price: $ 95.38
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ID: 366492
Weight: 1.31ct
Size: 9 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 183.92
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ID: 418948
Weight: 11.34ct
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 45.36
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ID: 360548
Weight: 7.56ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.91
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ID: 471437
Weight: 143.91ct
Size: 43.7 x 25.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 159.88
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ID: 495848
Weight: 2.56ct
Size: 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 119.68
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ID: 693510
Weight: 17.82ct
Size: 17 x 15.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 590.84
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ID: 355079
Weight: 34.50ct
Size: 34 x 18.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 91.08
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ID: 504774
Weight: 0.74ct
Size: 5.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 44.40
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ID: 497469
Weight: 3.07ct
Size: 8.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 15.35
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ID: 623789
Weight: 1.10ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 79.86
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ID: 574760
Weight: 3.29ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 86.86
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ID: 694391
Weight: 40.65ct
Size: 25.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 43.91
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ID: 565407
Weight: 5.76ct
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 22.81
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ID: 638587
Weight: 95.38ct
Size: 28.7 x 25.7 mm
Clarity: VS
Content: 1 pc
Price: $ 667.66
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ID: 486785
Weight: 45.71ct
Size: 37.9 x 18.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 66.37
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ID: 337538
Weight: 3000.00ct
Size: 72.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 2,138.40
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ID: 460459
Weight: 4.62ct (total)
Size: 7.4 x 7.2 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 9,702.00
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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: 603162
Weight: 2.00ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 546.48
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ID: 406663
Weight: 17.23ct
Size: 21.5 x 15.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 70.74
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ID: 363120
Weight: 36.35ct
Size: 30.8 x 20.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 54.53
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ID: 609111
Weight: 4.39ct (total)
Size: 8.5 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 81.13
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ID: 565079
Weight: 0.25ct (total)
Size: 3 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 456.04
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ID: 645452
Weight: 24.76ct
Size: 18.6 x 15.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.42
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ID: 604641
Weight: 20.92ct
Size: 22.1 x 16 mm
Clarity: Transparent
Content: 1 pc
Price: $ 103.56
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ID: 582246
Weight: 18.42ct
Size: 24.7 x 16.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 132.76
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ID: 675394
Weight: 2.71ct
Size: 11.9 x 9.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 87.61
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ID: 691359
Weight: 1.94ct
Size: 7 mm (calibrated)
Clarity: I1
Content: 1 pc
Price: $ 116.40
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ID: 602199
Weight: 8.58ct
Size: 14 x 14 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 41.68
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ID: 659456
Weight: 33.80ct
Size: 19 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 81.12
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ID: 453037
Weight: 5.18ct
Size: 10.4 x 9.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 1,189.74
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ID: 705217
Weight: 0.39ct
Size: 4.3 mm
Clarity: SI
Price: $ 13.26
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ID: 439316
Weight: 4.78ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 296.56
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ID: 521453
Weight: 32.95ct
Size: 34.4 x 17.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 260.96
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ID: 600425
Weight: 6.02ct
Size: 14.1 x 10 mm
Clarity: Transparent
Content: 1 pc
Price: $ 26.94
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ID: 414944
Weight: 7.36ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 40.48
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ID: 422964
Weight: 25.67ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 27.11
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ID: 669074
Weight: 68.84ct
Size: 25 x 24.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 82.61
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ID: 686626
Weight: 0.16ct
Size: 4.6 x 2.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 6.40
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ID: 586702
Weight: 30.25ct
Size: 30.1 x 17.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 199.66
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ID: 691067
Weight: 0.86ct
Size: 5.8 x 5.6 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 51.60
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ID: 527917
Weight: 4.14ct
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 29.95
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ID: 407379
Weight: 8.95ct
Size: 14 x 14 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 489.94
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ID: 706629
Weight: 30.58ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 914.46
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ID: 369307
Weight: 1.58ct
Size: 10.6 x 5.8 mm
Clarity: VS
Content: 1 pc
Price: $ 175.87
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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 am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience shopping and finding what I was looking for, the only improvement I could think of would be allowing to filter more than one size at a time.

Posted By Tlicious04 in September, 2024
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 -> 10 star ratings

Great website, no hassle, easy check out and found everything I needed quickly

Posted By Chris in September, 2024
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

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love gemstones. My father was a jeweler & I used to shop for stones for him.

Posted By Andie in September, 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

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 am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience shopping and finding what I was looking for, the only improvement I could think of would be allowing to filter more than one size at a time.

Posted By Tlicious04 in September, 2024
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 -> 10 star ratings

Great website, no hassle, easy check out and found everything I needed quickly

Posted By Chris in September, 2024
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

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love gemstones. My father was a jeweler & I used to shop for stones for him.

Posted By Andie in September, 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

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