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: 706936
Weight: 4.68ct
Size: 13.6 x 10.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 44.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 566541
Weight: 7.86ct
Size: 16 x 12.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 31.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 724293
Weight: 3.45ct (total)
Size: 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 33.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 484112
Weight: 2.34ct
Size: 10.6 x 8.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 15.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 736707
Weight: 34.21ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 48.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 608277
Weight: 1.25ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 31.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 686059
Weight: 0.18ct
Size: 3.1 x 3.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 11.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 416140
Weight: 1.43ct
Size: 18.6 x 3.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 45.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 458237
Weight: 1.31ct (total)
Size: 4.4 x 3.5 mm
Clarity: VS
Content: 4 pcs
Price: $ 172.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 712529
Weight: 1.85ct
Size: 9 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 714361
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: 699593
Weight: 15.67ct
Size: 22.4 x 14.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 719568
Weight: 0.74ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 6.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 464381
Weight: 2.78ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 25.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 640381
Weight: 1.36ct
Size: 6.6 x 6.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 8.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 712537
Weight: 4.21ct
Size: 12 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 11.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 638889
Weight: 1.19ct
Size: 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 28.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 384742
Weight: 5.26ct
Size: 20.4 x 9.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 47.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 724556
Weight: 0.89ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 389506
Weight: 3.23ct (total)
Size: 7.6 x 6.3 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 21.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 517476
Weight: 6.62ct
Size: 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 9.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 394380
Weight: 6.79ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 44.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 475672
Weight: 6.19ct
Size: 16 x 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 57.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 621523
Weight: 1.56ct
Size: 7.8 x 6.5 mm
Clarity: VS
Content: 1 pc
Price: $ 32.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 461281
Weight: 2.96ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 27.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 691448
Weight: 0.55ct
Size: 4.9 x 4.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 46.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 564830
Weight: 5.79ct
Size: 16.9 x 9.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 22.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 673091
Weight: 0.88ct
Size: 6.6 x 4.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 3.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 721816
Weight: 20.49ct
Size: 36.3 x 12.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 73.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 611453
Weight: 2.31ct
Size: 7.8 x 7.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 15.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 465302
Weight: 3.88ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 33.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 481320
Weight: 18.89ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 18.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 685646
Weight: 6.08ct
Size: 17.6 x 10.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 7.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 416006
Weight: 2.52ct
Size: 23.8 x 3.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 83.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 691072
Weight: 0.79ct
Size: 5.5 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 47.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 490997
Weight: 11.91ct (total)
Size: 9 mm (calibrated)
Clarity: Opaque
Content: 4 pcs
Price: $ 29.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 675164
Weight: 0.97ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 6.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 538358
Weight: 1.40ct
Size: 12.2 x 3.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 127.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 724882
Weight: 1.02ct
Size: 12.2 x 3.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 42.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 694546
Weight: 5.56ct
Size: 15.2 x 9.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 46.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 626752
Weight: 1.21ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 11.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 679220
Weight: 9.73ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 58.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 358459
Weight: 4.18ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 10 pcs
Price: $ 27.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 367894
Weight: 3.88ct
Size: 13.7 x 7.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 560075
Weight: 2.25ct
Size: 9 x 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 50.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 687816
Weight: 2.31ct
Size: 8.5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 406983
Weight: 10.04ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 37.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 445805
Weight: 2.33ct
Size: 9 x 7.3 mm
Clarity: VS
Content: 1 pc
Price: $ 111.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 606793
Weight: 1.89ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 517073
Weight: 44.78ct
Size: 23.6 x 18.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 52.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 564224
Weight: 2.86ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 18.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 365079
Weight: 1.46ct
Size: 15.6 x 3.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 53.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 517449
Weight: 33.19ct
Size: 22.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 43.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 713426
Weight: 16.83ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 141.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 595013
Weight: 6.03ct
Size: 12.9 x 9.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 79.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 620850
Weight: 4.22ct (total)
Size: 12.2 x 6.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 44.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 508962
Weight: 24.43ct
Size: 21.8 x 16 mm
Clarity: VVS
Content: 1 pc
Price: $ 225.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 381749
Weight: 2.23ct (total)
Size: 5.9 x 4.5 mm
Clarity: VVS-VS
Content: 5 pcs
Price: $ 88.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 693532
Weight: 0.77ct
Size: 6.2 x 5.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 46.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 719623
Weight: 0.94ct
Size: 6 x 4.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 16.92
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
371
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 wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I enjoy doing buisness with GemSelect. It is always a pleasure and you get what you ordered!

Posted By Ballpark in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
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 -> 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

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

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight 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 wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I enjoy doing buisness with GemSelect. It is always a pleasure and you get what you ordered!

Posted By Ballpark in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
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 -> 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

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

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight 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