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: 721961
Weight: 24.82ct
Size: 29 x 14.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 89.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 443039
Weight: 3.86ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 10.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 447091
Weight: 2.13ct
Size: 8 x 7.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 100.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 562668
Weight: 1.64ct
Size: 8.4 x 7 mm
Clarity: SI
Content: 1 pc
Price: $ 72.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 325998
Weight: 1.84ct
Size: 8.1 x 7.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 6.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 482236
Weight: 1.91ct
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 13.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 437129
Weight: 3.77ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 7.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 480693
Weight: 2.07ct (total)
Size: 5.8 x 3.7 mm
Clarity: VS
Content: 4 pcs
Price: $ 19.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 715825
Weight: 3.10ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 29.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 716328
Weight: 11.51ct
Size: 18 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 110.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 648284
Weight: 1.15ct
Size: 9 x 7 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 41.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 547504
Weight: 1.06ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 486655
Weight: 3.92ct
Size: 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 40.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 640377
Weight: 1.73ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 49.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 715003
Weight: 3.49ct (total)
Size: 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 9.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 675963
Weight: 2.17ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 6.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 729886
Weight: 4.37ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 39.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 333927
Weight: 12.96ct
Size: 16.3 x 11.5 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 256.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 454658
Weight: 1.85ct
Size: 10.2 x 5.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 17.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 306107
Weight: 17.48ct
Size: 18.1 x 15.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 27.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 420295
Weight: 10.01ct
Size: 19.4 x 13.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 39.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 476977
Weight: 12.36ct
Size: 14.7 x 12.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 48.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 593324
Weight: 0.66ct
Size: 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 34.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 481427
Weight: 2.32ct (total)
Size: 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 66.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 552246
Weight: 2.83ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 26.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 695005
Weight: 3.77ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 113.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 638389
Weight: 1.15ct
Size: 6.6 x 6.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 6.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 728149
Weight: 2.86ct
Size: 10 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 17.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 710235
Weight: 5.57ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 46.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 673591
Weight: 4.81ct
Size: 13.1 x 10.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 144.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 697750
Weight: 7.53ct
Size: 18.1 x 9.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 54.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 676166
Weight: 4.19ct
Size: 14.9 x 8.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 553094
Weight: 2.81ct
Size: 10.4 x 8.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 7.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 648668
Weight: 7.71ct (total)
Size: 12 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 13.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 656101
Weight: 10.93ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 664171
Weight: 1.04ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 11.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 481353
Weight: 24.27ct
Size: 30.1 x 20.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 21.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 730113
Weight: 0.63ct
Size: 7.2 x 3.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 640649
Weight: 1.83ct
Size: 7.3 x 6.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 12.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 470995
Weight: 2.44ct
Size: 9 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 22.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 726918
Weight: 0.45ct
Size: 7.7 x 4.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 13.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 572111
Weight: 1.26ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 39.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 526380
Weight: 3.84ct
Size: 11.1 x 8.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 36.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 645481
Weight: 12.87ct
Size: 18.5 x 14.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 63.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 422872
Weight: 3.87ct
Size: 9.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 25.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 516951
Weight: 2.25ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 20.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 662830
Weight: 0.93ct
Size: 5.9 x 5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 5.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 421922
Weight: 1.52ct (total)
Size: 6.2 x 4.3 mm
Clarity: VS
Content: 3 pcs
Price: $ 80.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 392575
Weight: 2.58ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 68.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 418605
Weight: 5.49ct
Size: 15.3 x 10.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 10.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 687733
Weight: 13.48ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 16.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 515025
Weight: 2.95ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 27.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 705707
Weight: 30.74ct (total)
Size: 29.2 x 14.4 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 36.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 357349
Weight: 2.42ct
Size: 7 x 6.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 66.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 681730
Weight: 0.84ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 561936
Weight: 2.33ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 17.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 396122
Weight: 7.45ct (total)
Size: 8.4 x 8.3 mm
Clarity: VS
Content: 2 pcs
Price: $ 365.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 611862
Weight: 2.14ct (total)
Size: 7.1 x 6.2 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 50.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 489701
Weight: 2.43ct (total)
Size: 4.5 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 48.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 697215
Weight: 0.53ct (total)
Size: 3.8 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 11.45
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
390
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 -> 8 star ratings

The website was nice and I bought some gems

Posted By Jay in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Good shopping experience. Website is relatively easy to use. Prices are good.

Posted By Bleep in August, 2024
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

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga 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 -> 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 -> 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 -> 10 star ratings

It was my second time so I understand what it is to do

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought from you before and have found your gems exceed my expectations. I have been very satisfied with all gems sent to me. I will be back. Thanks....

Posted By Dork 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 -> 8 star ratings

The website was nice and I bought some gems

Posted By Jay in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Good shopping experience. Website is relatively easy to use. Prices are good.

Posted By Bleep in August, 2024
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

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga 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 -> 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 -> 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 -> 10 star ratings

It was my second time so I understand what it is to do

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought from you before and have found your gems exceed my expectations. I have been very satisfied with all gems sent to me. I will be back. Thanks....

Posted By Dork 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