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: 451295
Weight: 1.55ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 14.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 501527
Weight: 18.75ct (total)
Size: 16 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 78.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 456633
Weight: 2.42ct
Size: 11.3 x 7.4 mm
Clarity: VS
Content: 1 pc
Price: $ 22.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 697496
Weight: 2.60ct
Size: 11 x 8.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 78.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 682137
Weight: 0.97ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 17.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 673879
Weight: 1.58ct
Size: 11.1 x 8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 64.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 671548
Weight: 11.99ct
Size: 20.1 x 12.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 30.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 727095
Weight: 0.40ct
Size: 5.6 x 3.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 20.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 600421
Weight: 6.11ct
Size: 14.1 x 10.2 mm
Clarity: Transparent
Price: $ 27.34
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 479620
Weight: 2.35ct (total)
Size: 10.1 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 24.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 439391
Weight: 1.59ct
Size: 9.5 x 7.5 mm
Clarity: VS
Content: 1 pc
Price: $ 14.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 499422
Weight: 2.32ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 9.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 735124
Weight: 0.48ct
Size: 4.7 mm
Clarity: SI
Content: 1 pc
Price: $ 28.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 687097
Weight: 5.76ct (total)
Size: 18.9 x 8.5 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 17.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 677972
Weight: 0.16ct (total)
Size: 2.1 x 2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 96.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 449924
Weight: 3.23ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 645865
Weight: 3.97ct
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 12.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 595163
Weight: 18.31ct (total)
Size: 22.3 x 11.6 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 48.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 463488
Weight: 4.33ct (total)
Size: 12 x 6.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 57.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 677845
Weight: 0.69ct
Size: 4.5 x 4.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 394.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 478425
Weight: 0.65ct
Size: 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 27.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 531515
Weight: 1.54ct
Size: 6.8 x 5.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 154.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 435528
Weight: 9.58ct
Size: 14 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 31.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 715432
Weight: 3.92ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 671606
Weight: 5.84ct
Size: 15.1 x 11 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 736591
Weight: 23.93ct
Size: 25.4 x 19.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 347654
Weight: 3.44ct
Size: 26.6 x 3.9 mm
Clarity: SI
Content: 1 pc
Price: $ 173.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 691201
Weight: 1.42ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 76.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 681838
Weight: 13.87ct
Size: 15.1 x 13.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 69.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 644435
Weight: 1.70ct
Size: 8.3 x 6.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 657904
Weight: 0.90ct
Size: 5.4 x 5.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 4.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 602292
Weight: 2.83ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 689033
Weight: 0.21ct
Size: 4.7 x 3 mm
Clarity: VVS
Content: 1 pc
Price: $ 12.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 726861
Weight: 0.23ct
Size: 4 x 3.2 mm
Clarity: VS
Content: 1 pc
Price: $ 9.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 618965
Weight: 5.78ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 29.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 548545
Weight: 2.46ct
Size: 8 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 49.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 566953
Weight: 76.47ct
Size: 58.5 x 32.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 156.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 724993
Weight: 0.48ct
Size: 6.4 x 3 mm
Clarity: VVS
Content: 1 pc
Price: $ 20.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 533351
Weight: 10.14ct
Size: 13 x 13 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 20.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 726027
Weight: 0.64ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 6.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 484397
Weight: 4.15ct (total)
Size: 7.8 x 5.7 mm
Clarity: VS
Content: 4 pcs
Price: $ 54.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 397293
Weight: 6.19ct
Size: 11.5 x 11.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 40.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 465918
Weight: 4.00ct (total)
Size: 12 x 6 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 42.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 671452
Weight: 9.39ct
Size: 19.3 x 11.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 24.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 442219
Weight: 1.93ct
Size: 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 50.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 475028
Weight: 1.44ct
Size: 7.5 x 5.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 5.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 657253
Weight: 3.29ct
Size: 17.6 x 8.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 622343
Weight: 2.61ct
Size: 12 x 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 44.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 680737
Weight: 1.29ct
Size: 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 38.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 520638
Weight: 1.57ct
Size: 10.8 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 87.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 459937
Weight: 4.10ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 525354
Weight: 1.61ct
Size: 7.1 x 6.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 297.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 721177
Weight: 1.11ct
Size: 7.7 x 5.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 9.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 465373
Weight: 4.09ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 35.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 658110
Weight: 8.76ct
Size: 12.5 x 14.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 73.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 688634
Weight: 1.58ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 15.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 719824
Weight: 0.95ct
Size: 5.9 x 4.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 17.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 431322
Weight: 1.38ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 13.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 453791
Weight: 2.30ct
Size: 11.7 x 7.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 427828
Weight: 2.45ct (total)
Size: 6.2 x 4.2 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 16.18
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
33
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 -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 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

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
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 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 -> 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

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

there are a large number of gems to choose from i have ordered before and these objects are precious to me that my light reflect in them and fills the stones they are there when i need to reflect on life

Posted By Kickbass.2 in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.

Posted By Tim in March, 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 -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 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

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
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 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 -> 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

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

there are a large number of gems to choose from i have ordered before and these objects are precious to me that my light reflect in them and fills the stones they are there when i need to reflect on life

Posted By Kickbass.2 in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.

Posted By Tim in March, 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