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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: 692710
Weight: 25.91ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 181.37
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ID: 660342
Weight: 18.54ct
Size: 16 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 37.27
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ID: 528677
Weight: 41.36ct
Size: 27 x 20 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 109.19
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ID: 354763
Weight: 382.95ct
Size: 44.4 x 42.5 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 765.90
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ID: 548520
Weight: 1.72ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 430.00
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ID: 545011
Weight: 3.27ct
Size: 10.7 x 6.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 248.19
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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: 408814
Weight: 8.97ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 41.45
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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: 595266
Weight: 26.05ct
Size: 19.7 x 19.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 85.97
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ID: 389993
Weight: 20.82ct
Size: 24.8 x 16.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 54.96
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ID: 510935
Weight: 31.95ct (total)
Size: 22.3 x 11.5 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 68.75
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ID: 645364
Weight: 27.76ct
Size: 20.1 x 16.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 137.24
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ID: 576139
Weight: 18.08ct (total)
Size: 20.7 x 14.4 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 50.36
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ID: 482110
Weight: 12.04ct
Size: 19.3 x 9.5 mm
Clarity: VS
Content: 1 pc
Price: $ 274.51
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ID: 494138
Weight: 7.86ct
Size: 15 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 17.02
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ID: 401455
Weight: 30.74ct
Size: 25 x 18.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 60.86
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ID: 524011
Weight: 28.55ct
Size: 21.2 x 18.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 226.12
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ID: 623469
Weight: 0.71ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 10.93
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ID: 617897
Weight: 75.10ct
Size: 22.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 495.66
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ID: 481392
Weight: 1.62ct
Size: 6.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.80
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ID: 492449
Weight: 50.61ct
Size: 30.1 x 26 mm
Clarity: Opaque
Content: 1 pc
Price: $ 601.28
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ID: 415688
Weight: 1.17ct
Size: 8.5 x 5.3 mm
Clarity: VS
Content: 1 pc
Price: $ 1,034.75
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ID: 693386
Weight: 3.26ct
Size: 11.6 x 6.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.74
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ID: 606003
Weight: 5.81ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 63.91
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ID: 431529
Weight: 2.44ct
Size: 7.7 x 7.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 48.31
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ID: 402478
Weight: 11.13ct
Size: 21.8 x 12 mm
Clarity: Transparent
Content: 1 pc
Price: $ 47.16
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ID: 504838
Weight: 10.97ct
Size: 18 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 84.47
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ID: 348249
Weight: 35.80ct
Size: 34.1 x 26.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 47.26
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ID: 494033
Weight: 8.17ct
Size: 13.8 x 12.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 26.96
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ID: 563529
Weight: 1.37ct
Size: 6.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 30.74
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ID: 690464
Weight: 5.23ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 122.82
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ID: 499209
Weight: 2.11ct
Size: 11.9 x 5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 348.15
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ID: 338882
Weight: 2.12ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 97.94
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ID: 548707
Weight: 56.33ct
Size: 37.5 x 23.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 89.23
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ID: 526385
Weight: 3.92ct
Size: 11.5 x 8.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 41.40
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ID: 470307
Weight: 5.85ct
Size: 11.8 x 9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 35.10
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ID: 348246
Weight: 45.75ct
Size: 37.2 x 22.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.40
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ID: 394015
Weight: 58.74ct
Size: 31.5 x 25 mm
Clarity: Opaque
Content: 1 pc
Price: $ 64.61
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ID: 385256
Weight: 7.10ct
Size: 25 x 10.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 63.91
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ID: 660339
Weight: 28.68ct
Size: 19 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 57.65
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ID: 491713
Weight: 83.94ct (total)
Size: 23 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 98.62
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ID: 552032
Weight: 11.09ct
Size: 17 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 29.28
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ID: 691365
Weight: 1.63ct
Size: 7.3 x 5.3 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 97.80
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ID: 499555
Weight: 44.70ct
Size: 33.5 x 21.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 41.30
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ID: 332291
Weight: 2.38ct
Size: 9.5 x 7 mm
Clarity: VS
Content: 1 pc
Price: $ 113.10
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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: 679248
Weight: 20.10ct
Size: 21.1 x 16.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 120.60
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ID: 619404
Weight: 7.84ct
Size: 14 x 14 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 39.64
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ID: 494256
Weight: 14.15ct
Size: 23.2 x 14.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 73.03
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ID: 524022
Weight: 6.64ct
Size: 18.3 x 8.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 175.30
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ID: 564603
Weight: 0.31ct
Size: 4.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 619.86
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ID: 647538
Weight: 24.23ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 31.98
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ID: 693820
Weight: 6.20ct
Size: 14.8 x 11.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.60
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ID: 382310
Weight: 3.11ct (total)
Size: 3.3 mm
Clarity: VS
Content: 20 pcs
Price: $ 164.74
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ID: 645621
Weight: 23.73ct
Size: 23.8 x 15.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 97.77
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ID: 609045
Weight: 2.80ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 51.74
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ID: 682992
Weight: 24.44ct
Size: 29 x 13.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 234.62
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ID: 715772
Weight: 0.86ct
Size: 6.3 x 4.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 54.70
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ID: 402343
Weight: 13.86ct
Size: 21.7 x 15.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 58.73
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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

Good. I ts very user friendly.

Posted By Shalini in June, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 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 -> 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

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found exactly what I was looking for and ordered it. I like how you give information on the stones I'm buying. Glad I found you!

Posted By TheP in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

went well

Posted By Doug 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 -> 10 star ratings

Good. I ts very user friendly.

Posted By Shalini in June, 2025
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 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 -> 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

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found exactly what I was looking for and ordered it. I like how you give information on the stones I'm buying. Glad I found you!

Posted By TheP in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

went well

Posted By Doug 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