X
Gemstone Search

Your Details

Please fill in your email address

Please fill in a password

Forgot your password?

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

Untreated Gemstones Weight
Untreated Gemstones Size
Untreated Gemstones Clarity
Untreated Gemstones Price
Untreated Gemstones Treatment

Size Explained

Choose Size or Size Range
For Example: 6-7
For Example: 8-9
Bi-color Untreated Gemstones
Black Untreated Gemstones
Blue Untreated Gemstones
Brown Untreated Gemstones
Golden Untreated Gemstones
Gray Untreated Gemstones
Green Untreated Gemstones
Multicolor Untreated Gemstones
Orange Untreated Gemstones
Pink Untreated Gemstones
Purple Untreated Gemstones
Red Untreated Gemstones
Turquoise Untreated Gemstones
Violet Untreated Gemstones
White Untreated Gemstones
Yellow Untreated Gemstones
Single
Pairs
Lots
Faceted
Cabochons
Clear All
  • Actual Product Photos
  • Reliable Quality
  • Full Transparency
  • Large Selection
  • Affordable Prices
  • Fast, Secure Global Shipping
ID: 621639
Weight: 1.49ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 567463
Weight: 0.14ct (total)
Size: 2.7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 301.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 555868
Weight: 0.82ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 21.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 478680
Weight: 0.82ct
Size: 7.5 x 4.7 mm
Clarity: VS
Content: 1 pc
Price: $ 34.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 723385
Weight: 0.96ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 9.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 341825
Weight: 13.50ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 19.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 462904
Weight: 1.81ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 4 pcs
Price: $ 95.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 695438
Weight: 4.10ct
Size: 10.7 x 7.4 mm
Clarity: VS
Content: 1 pc
Price: $ 123.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 390621
Weight: 1.57ct (total)
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 101.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 736579
Weight: 42.74ct
Size: 28.7 x 18 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 661848
Weight: 11.97ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 14.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 516345
Weight: 1.27ct
Size: 6.8 x 5.8 mm
Clarity: VS
Content: 1 pc
Price: $ 120.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 606564
Weight: 5.47ct
Size: 12.6 x 12.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 72.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 456760
Weight: 1.73ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 15.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 688152
Weight: 5.47ct (total)
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 16.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 502047
Weight: 2.08ct
Size: 11.6 x 6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 27.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 725734
Weight: 0.36ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 3.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 546488
Weight: 3.76ct
Size: 9 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 29.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 608858
Weight: 62.48ct (total)
Size: 25.2 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 98.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 736000
Weight: 58.56ct
Size: 41.4 x 23.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 48.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 617522
Weight: 1.89ct
Size: 8.2 x 6.6 mm
Clarity: VS
Content: 1 pc
Price: $ 40.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 635473
Weight: 1.34ct
Size: 8.8 x 6.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 38.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 528126
Weight: 2.51ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 26.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 348805
Weight: 32.44ct
Size: 29.9 x 23.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 42.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 486474
Weight: 21.50ct
Size: 31.5 x 9.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 14.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 660020
Weight: 2.14ct
Size: 7 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 694394
Weight: 13.55ct
Size: 15 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 113.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 722376
Weight: 5.34ct
Size: 18.5 x 9.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 608830
Weight: 2.84ct (total)
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 52.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 636637
Weight: 0.85ct
Size: 6.9 x 6.7 mm
Clarity: VS
Content: 1 pc
Price: $ 24.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 351810
Weight: 3.78ct (total)
Size: 4.9 x 4.8 mm
Clarity: Transparent
Content: 10 pcs
Price: $ 99.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 390882
Weight: 1.70ct
Size: 16.1 x 3.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 49.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 679208
Weight: 2.75ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 23.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 609020
Weight: 1.72ct
Size: 8 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 15.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 644764
Weight: 4.35ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 24.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 727358
Weight: 0.44ct
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 13.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 608287
Weight: 5.66ct
Size: 12 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 52.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 678700
Weight: 20.84ct
Size: 22.4 x 13.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 75.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 632294
Weight: 5.90ct (total)
Size: 18.1 x 7.1 mm
Clarity: VVS
Content: 2 pcs
Price: $ 42.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 572947
Weight: 1.04ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 27.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 480652
Weight: 4.94ct (total)
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 35.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 508965
Weight: 28.16ct
Size: 22.4 x 16 mm
Clarity: IF
Content: 1 pc
Price: $ 260.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 730288
Weight: 0.80ct
Size: 5.1 x 4.8 mm
Clarity: VS
Content: 1 pc
Price: $ 48.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 678714
Weight: 5.71ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 47.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 401594
Weight: 1.97ct (total)
Size: 4.2 mm
Clarity: VS
Content: 4 pcs
Price: $ 80.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 640321
Weight: 0.27ct
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 12.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 710251
Weight: 3.31ct
Size: 12 x 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 9.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 663329
Weight: 4.60ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 11.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 334289
Weight: 17.61ct
Size: 18 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 28.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 733101
Weight: 0.43ct
Size: 6 x 4 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 15.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 556857
Weight: 3.37ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 28.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 388984
Weight: 0.98ct
Size: 7.6 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 62.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 559281
Weight: 2.16ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 44.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 689010
Weight: 3.76ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 17.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 658553
Weight: 18.75ct
Size: 16 x 16 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 27.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 706421
Weight: 4.04ct
Size: 9.8 x 8.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 650198
Weight: 1.49ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 12.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 712315
Weight: 2.71ct
Size: 12 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 7.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 447319
Weight: 4.84ct
Size: 12.6 x 9.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 159.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 434834
Weight: 43.72ct
Size: 31.3 x 25.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 86.57
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
414
Choose Page
1 - 780

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 really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 2025
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

I love the quality, package and info of your gems.

Posted By Diana in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones. .

Posted By Steven M. in February, 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

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

Great site always looking for great deals and find them on this site

Posted By IRO5812 in July, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 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 really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 2025
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

I love the quality, package and info of your gems.

Posted By Diana in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to find what I wanted

Posted By Villian in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones. .

Posted By Steven M. in February, 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

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

Great site always looking for great deals and find them on this site

Posted By IRO5812 in July, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 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