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: 667939
Weight: 36.33ct
Size: 32.2 x 22.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 130.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 704394
Weight: 0.70ct
Size: 5.3 x 4.8 mm
Clarity: VS
Content: 1 pc
Price: $ 23.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 648645
Weight: 29.75ct
Size: 27.4 x 18.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 17.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 366654
Weight: 1.29ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 181.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 666097
Weight: 12.05ct
Size: 28.2 x 12.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 41.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 669761
Weight: 14.57ct
Size: 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 72.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 672146
Weight: 24.26ct
Size: 33.2 x 17.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 24.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 598291
Weight: 1.28ct
Size: 8.2 x 6.3 mm
Clarity: VS
Content: 1 pc
Price: $ 84.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 476750
Weight: 60.46ct
Size: 35.2 x 23 mm
Clarity: Opaque
Content: 1 pc
Price: $ 51.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 645836
Weight: 56.79ct
Size: 34.8 x 17.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 177.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 664613
Weight: 4.46ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 80.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 519944
Weight: 1.54ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 6.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 667934
Weight: 37.98ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 113.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 447456
Weight: 77.78ct (total)
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 4 pcs
Price: $ 154.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 418129
Weight: 8.98ct
Size: 13 x 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 47.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 441222
Weight: 9.49ct
Size: 17.3 x 8.8 mm
Clarity: VS
Content: 1 pc
Price: $ 313.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 521579
Weight: 23.14ct
Size: 23.8 x 16.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 183.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 360548
Weight: 7.56ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 538307
Weight: 8.60ct
Size: 14 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 66.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 522842
Weight: 9.89ct
Size: 17.3 x 11.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 261.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 651041
Weight: 9.90ct
Size: 18.4 x 13.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 41.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 563477
Weight: 0.72ct
Size: 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 43.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 674106
Weight: 6.98ct
Size: 18.9 x 6.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 125.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 521607
Weight: 3.56ct
Size: 10.5 x 8.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 25.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 634610
Weight: 22.12ct
Size: 27.5 x 12.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 185.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 689794
Weight: 4.61ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 25.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 574238
Weight: avg. 0.40 ct / each
Size: 6 x 4 mm (calibrated)
Clarity: VS
Price: $ 2.18
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 586138
Weight: 14.28ct
Size: 19.1 x 22.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 94.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 486353
Weight: 64.31ct
Size: 30.6 x 32.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 65.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 586516
Weight: 6.50ct
Size: 15 x 15 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 42.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 673941
Weight: 9.38ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 112.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 623470
Weight: 0.89ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 16.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 701516
Weight: 2.77ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 132.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 636248
Weight: avg. 0.58 ct / each
Size: 4.6 x 4.6 mm
Clarity: VVS-VS
Price: $ 4.05
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 618040
Weight: 28.63ct
Size: 31.3 x 21.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 392902
Weight: 3.84ct (total)
Size: 6.7 x 6.6 mm
Clarity: VS
Content: 2 pcs
Price: $ 101.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 382735
Weight: 23.10ct
Size: 19.5 x 15.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 489.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 658462
Weight: 4.74ct
Size: 13.7 x 10.4 mm
Clarity: VVS
Content: 1 pc
Price: $ 39.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 617879
Weight: avg. 2.47 ct / each
Size: 8 mm (calibrated)
Clarity: Translucent
Price: $ 3.23
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 600308
Weight: 3.70ct
Size: 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 48.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 306902
Weight: 2.52ct
Size: 8.7 x 6.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 9.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 401791
Weight: 1.13ct
Size: 6.4 x 5.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 153.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 593197
Weight: 1.53ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 569469
Weight: 2.35ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 17.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 691805
Weight: 0.61ct
Size: 4.8 x 4 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 51.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 716104
Weight: 2.98ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 28.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 450372
Weight: 11.89ct
Size: 16.8 x 9.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 3,923.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 704701
Weight: 39.39ct
Size: 40.5 x 11.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 640096
Weight: 0.77ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Price: $ 8.32
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 697710
Weight: 0.35ct
Size: 3.8 mm
Clarity: VS
Content: 1 pc
Price: $ 7.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 461260
Weight: 3.58ct
Size: 10 mm (calibrated)
Clarity: VVS
Price: $ 27.57
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 691702
Weight: 1.24ct
Size: 6 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 74.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 583732
Weight: 3.67ct
Size: 12 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 12.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 328244
Weight: 12.97ct (total)
Size: 12 x 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 85.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 392985
Weight: 3.65ct (total)
Size: 6.7 x 6.7 mm
Clarity: VS
Content: 2 pcs
Price: $ 96.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 659576
Weight: 1.91ct
Size: 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 500203
Weight: 3.50ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 8 pcs
Price: $ 26.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 346658
Weight: 3.80ct
Size: 15.6 x 7.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 2,808.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 717406
Weight: 1.18ct
Size: 7.4 x 5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 382.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 500441
Weight: 2.27ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 20.98
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
23
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

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
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

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

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

Posted By Diana in April, 2025
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

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

excellent deals-excellent service-fair prices

Posted By JD 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

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

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
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

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

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

Posted By Diana in April, 2025
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

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

excellent deals-excellent service-fair prices

Posted By JD 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

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