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: 706425
Weight: 11.03ct
Size: 13.9 x 13 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 393444
Weight: 5.35ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 35.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 534243
Weight: 2.60ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 20.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 688696
Weight: 1.51ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 8.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 669625
Weight: 18.52ct
Size: 18.2 x 17.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 55.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 539891
Weight: 3.37ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 725867
Weight: 0.66ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 6.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 689715
Weight: 0.24ct
Size: 4.2 x 3 mm
Clarity: VS
Content: 1 pc
Price: $ 14.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 664027
Weight: 2.32ct
Size: 10.6 x 7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 11.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 677805
Weight: 0.05ct
Size: 2 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 19.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 730030
Weight: 0.26ct
Size: 5 x 3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 12.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 706458
Weight: 8.04ct
Size: 16.1 x 13.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 16.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 520034
Weight: 1.20ct
Size: 8 x 6.3 mm
Clarity: VS
Content: 1 pc
Price: $ 110.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 725651
Weight: 1.06ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 41.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 659273
Weight: 11.24ct
Size: 21.3 x 13.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 622966
Weight: 1.18ct
Size: 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 621777
Weight: 0.88ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 18.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 524915
Weight: 1.76ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 271.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 651010
Weight: 2.08ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 149.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 713827
Weight: 15.61ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 131.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 471551
Weight: 1.74ct (total)
Size: 5.2 x 4.1 mm
Clarity: VS
Content: 4 pcs
Price: $ 229.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 725583
Weight: 1.42ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 13.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 712807
Weight: 1.36ct
Size: 7.7 x 5.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 27.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 447455
Weight: 76.71ct (total)
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 4 pcs
Price: $ 151.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 662674
Weight: 24.81ct (total)
Size: 25.1 x 15.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 17.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 683145
Weight: 0.19ct
Size: 3.5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 108.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 715355
Weight: 0.76ct
Size: 8.1 x 4.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 48.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 452401
Weight: 0.50ct
Size: 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 23.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 668010
Weight: 18.79ct
Size: 19.2 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 112.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 716412
Weight: 3.14ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 30.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 715364
Weight: 0.88ct
Size: 6.5 x 4.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 55.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 500976
Weight: 6.05ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 55.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 678119
Weight: 5.40ct
Size: 22.9 x 10.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 6.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 723736
Weight: 0.03ct
Size: 2 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 24.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 500339
Weight: 1.64ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 9.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 431070
Weight: 3.17ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 75.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 606838
Weight: 25.23ct (total)
Size: 19.1 x 13.8 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 39.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 704575
Weight: 2.03ct
Size: 12.1 x 8.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 60.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 365173
Weight: 1.27ct
Size: 20.6 x 2.7 mm
Clarity: VS
Content: 1 pc
Price: $ 33.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 331757
Weight: 11.46ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 4 pcs
Price: $ 75.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 704640
Weight: 1.72ct
Size: 10.5 x 8.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 51.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 609290
Weight: 17.02ct
Size: 24.4 x 19.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 448606
Weight: 1.45ct
Size: 7.5 x 6 mm
Clarity: VS
Content: 1 pc
Price: $ 922.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 667169
Weight: 1.33ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 27.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 534778
Weight: 3.49ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 27.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 502139
Weight: 1.96ct
Size: 10 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 15.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 415355
Weight: 1.00ct
Size: 5.7 x 5.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 792.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 668524
Weight: 11.81ct
Size: 25 x 8.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 70.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 644667
Weight: 1.74ct
Size: 8 x 6.5 mm
Clarity: VS
Content: 1 pc
Price: $ 41.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 582931
Weight: 1.03ct
Size: 8.2 x 5.7 mm
Clarity: SI
Content: 1 pc
Price: $ 45.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 603880
Weight: 33.38ct
Size: 34.6 x 23.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 713915
Weight: 0.83ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 394929
Weight: 5.06ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 33.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 636242
Weight: 6.79ct
Size: 18.5 x 9.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 57.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 551158
Weight: 27.57ct (total)
Size: 24.3 x 13.8 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 41.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 669121
Weight: 3.41ct
Size: 14 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 102.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 389143
Weight: 0.79ct
Size: 6.7 x 4.4 mm
Clarity: VS
Content: 1 pc
Price: $ 34.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 721183
Weight: 1.16ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 9.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 548001
Weight: 1.78ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 534.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 721534
Weight: 0.49ct
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 8.82
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
444
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 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

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
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

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

I trust this company to deliver exactly what is offered. I have never had to return a selection of Gems. I appreciate the company's detailed description of their product. It helps this customer find mounts before the gems arrive. Any day of the year one can find a wide selection of gems, be it by price, color, cut, lot or single. Pricing does not jump all over the place and stays reasonable. Be assured your items will arrive in perfect condition as the company's shipping department does a great job.

Posted By Miss Sherrie in August, 2024
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

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron 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 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

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
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

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

I trust this company to deliver exactly what is offered. I have never had to return a selection of Gems. I appreciate the company's detailed description of their product. It helps this customer find mounts before the gems arrive. Any day of the year one can find a wide selection of gems, be it by price, color, cut, lot or single. Pricing does not jump all over the place and stays reasonable. Be assured your items will arrive in perfect condition as the company's shipping department does a great job.

Posted By Miss Sherrie in August, 2024
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

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron 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