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: 719067
Weight: 2.53ct
Size: 8.2 x 6.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 75.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 648456
Weight: 23.66ct
Size: 27 x 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 310829
Weight: 2.47ct (total)
Size: 3.8 mm
Clarity: VS-SI
Content: 12 pcs
Price: $ 133.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 400214
Weight: 3.44ct
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 11.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 626199
Weight: 3.08ct
Size: 13.7 x 8.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 9.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 714021
Weight: 0.34ct
Size: 4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 10.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 664138
Weight: 1.06ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 8.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 712758
Weight: 4.97ct (total)
Size: 12 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 13.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 466878
Weight: 0.58ct
Size: 7.3 x 4.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 38.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 699051
Weight: 0.92ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 472397
Weight: 4.89ct
Size: 12 x 9.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 481066
Weight: 18.38ct
Size: 27 x 18.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 390887
Weight: 2.97ct
Size: 13 x 8.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 98.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 687635
Weight: 1.24ct
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 1.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 604056
Weight: 27.06ct
Size: 29.1 x 28.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 25.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 662102
Weight: 18.95ct
Size: 19 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 45.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 647291
Weight: 54.28ct
Size: 35.7 x 24.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 65.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 486200
Weight: 11.07ct
Size: 17.6 x 14 mm
Clarity: Translucent
Content: 1 pc
Price: $ 92.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 350298
Weight: 1.83ct
Size: 15.5 x 4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 53.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 600716
Weight: 3.61ct
Size: 10.5 x 10.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 23.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 637061
Weight: 0.98ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 51.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 734741
Weight: 7.00ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 294.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 722126
Weight: 0.71ct
Size: 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 34.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 585677
Weight: 5.50ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 36.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 531588
Weight: 3.73ct
Size: 10.1 x 6.7 mm
Clarity: VS
Content: 1 pc
Price: $ 221.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 714778
Weight: 0.72ct
Size: 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 21.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 534194
Weight: 2.05ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 712576
Weight: 1.29ct
Size: 7.7 x 5.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 21.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 657873
Weight: 1.40ct (total)
Size: 6.3 x 4.1 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 6.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 550606
Weight: 5.41ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 40.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 433213
Weight: 7.94ct
Size: 11.5 x 11.4 mm
Clarity: VVS
Content: 1 pc
Price: $ 17.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 500849
Weight: 7.30ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 56.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 647628
Weight: 0.50ct (total)
Size: 3.8 mm
Clarity: VS
Content: 2 pcs
Price: $ 12.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 479938
Weight: 3.34ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 30.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 734743
Weight: 7.28ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 305.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 739111
Weight: 0.58ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 5.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 343633
Weight: 30.15ct
Size: 42.7 x 15.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 522489
Weight: 4.17ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 38.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 332926
Weight: 18.91ct
Size: 18 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 29.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 463141
Weight: 1.66ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 32.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 662016
Weight: 1.07ct
Size: 9 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 2.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 410277
Weight: 4.76ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 31.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 353076
Weight: 1.08ct
Size: 7.5 x 6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 128.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 685703
Weight: 1.06ct
Size: 7.1 x 5.7 mm
Clarity: VS
Content: 1 pc
Price: $ 19.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 492622
Weight: 4.32ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 31.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 427691
Weight: 2.73ct (total)
Size: 6.2 x 4.2 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 18.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 408313
Weight: 9.55ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 22.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 472001
Weight: 6.33ct
Size: 14 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 1,671.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 464222
Weight: 3.16ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 29.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 714171
Weight: 0.45ct
Size: 4.3 mm
Clarity: SI
Content: 1 pc
Price: $ 13.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 648430
Weight: 1.20ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 11.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 524003
Weight: 9.87ct
Size: 17.2 x 12.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 78.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 688849
Weight: 1.41ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 13.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 527928
Weight: 5.05ct
Size: 13.5 x 9.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 36.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 727870
Weight: 3.62ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 8.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 367251
Weight: 7.57ct (total)
Size: 8 mm (calibrated)
Clarity: Transparent/Translucent
Content: 4 pcs
Price: $ 49.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 617886
Weight: 33.18ct
Size: 43.3 x 15.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 218.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 681793
Weight: 1.09ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 19.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 698798
Weight: 0.50ct
Size: 5 x 4.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 721724
Weight: 0.54ct
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 9.72
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
638
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

Muy serios y muy oportunos para el envo

Posted By Veronica in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 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

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

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky in December, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

I am very pleased with the ways you can filter your searches on this site, finding exactly what I want with little knowledge of what I am looking for is surprisingly easy!

Posted By Leo in March, 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

Good products

Posted By Brave in October, 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

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

Muy serios y muy oportunos para el envo

Posted By Veronica in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 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

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

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky in December, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

I am very pleased with the ways you can filter your searches on this site, finding exactly what I want with little knowledge of what I am looking for is surprisingly easy!

Posted By Leo in March, 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

Good products

Posted By Brave in October, 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

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