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: 315564
Weight: 3.77ct (total)
Size: 3.2 x 3.2 mm
Clarity: Transparent
Content: 20 pcs
Price: $ 84.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 420170
Weight: 19.29ct
Size: 23.5 x 15.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 38.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 686505
Weight: 0.49ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 10.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 431208
Weight: 3.35ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 79.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 367965
Weight: 4.55ct
Size: 11.5 x 7.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 29.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 711089
Weight: 17.02ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 45.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 600537
Weight: 2.60ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 455142
Weight: 3.80ct
Size: 14.1 x 7 mm
Clarity: VS
Content: 1 pc
Price: $ 35.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 542786
Weight: 2.26ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Price: $ 20.88
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 446582
Weight: 3.20ct
Size: 12 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 10.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 714783
Weight: 0.82ct
Size: 5.2 mm
Clarity: SI
Content: 1 pc
Price: $ 24.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 474175
Weight: 1.97ct (total)
Size: 6.6 x 4.6 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 7.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 497666
Weight: 3.12ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 28.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 259970
Weight: 19.96ct (total)
Size: 10 mm (calibrated)
Clarity: Opaque
Content: 4 pcs
Price: $ 171.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 372538
Weight: 25.07ct (total)
Size: 17.6 x 8.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 237.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 532432
Weight: 4.64ct
Size: 15 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 36.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 674266
Weight: 18.49ct
Size: 21.1 x 17.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 332.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 639596
Weight: 0.87ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 721755
Weight: 55.70ct
Size: 40.7 x 24.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 66.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 714340
Weight: 0.44ct
Size: 4.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 13.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 486993
Weight: 43.81ct
Size: 34.6 x 25.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 28.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 664618
Weight: 1.97ct
Size: 8 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 42.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 325996
Weight: 1.70ct
Size: 8.2 x 7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 6.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 692967
Weight: 31.47ct
Size: 36.9 x 10.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 461094
Weight: 6.64ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 61.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 723584
Weight: 1.38ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 13.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 619197
Weight: 9.81ct (total)
Size: 11.4 x 10.1 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 49.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 699730
Weight: 0.68ct
Size: 5.2 x 4.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 40.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 400832
Weight: 5.04ct
Size: 10.7 x 10.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 33.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 679131
Weight: 3.08ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 555319
Weight: 27.58ct
Size: 16 x 16 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 33.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 691806
Weight: 0.52ct
Size: 4.9 x 4.4 mm
Clarity: VVS
Content: 1 pc
Price: $ 43.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 693083
Weight: 25.75ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 216.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 640657
Weight: 1.41ct
Size: 6.8 x 6.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 9.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 714797
Weight: 0.35ct
Size: 4.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 10.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 553142
Weight: 1.11ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 22.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 478363
Weight: 14.78ct
Size: 18.2 x 13.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 39.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 417909
Weight: 10.75ct
Size: 14 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 539876
Weight: 1.41ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 735252
Weight: 2.46ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 98.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 533505
Weight: 1.98ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 12.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 433507
Weight: 31.66ct
Size: 31.6 x 21.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 34.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 478611
Weight: 0.79ct
Size: 7.7 x 5.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 33.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 393166
Weight: 8.85ct (total)
Size: 12 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 58.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 407968
Weight: 6.77ct
Size: 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 14.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 693476
Weight: 4.86ct
Size: 13.7 x 11.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 17.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 379815
Weight: 2.31ct (total)
Size: 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 130.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 699557
Weight: 20.32ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 711011
Weight: 1.02ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 20.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 662746
Weight: 1.41ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 11.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 465364
Weight: 3.46ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 30.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 398830
Weight: 1.96ct
Size: 8 x 8 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 51.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 656103
Weight: 10.42ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 16.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 476740
Weight: 35.01ct
Size: 28.1 x 18.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 138.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 664828
Weight: 1.07ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 11.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 720118
Weight: 1.05ct
Size: 6.7 x 5.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 101.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 526659
Weight: 1.08ct (total)
Size: 8.1 x 4.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 11.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 677855
Weight: 0.18ct
Size: 2.8 x 2.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 90.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 712408
Weight: 4.56ct
Size: 16 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 12.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 586788
Weight: 2.61ct
Size: 18.2 x 7.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.12
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
173
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

easy site to navigate

Posted By Curt's Cabochons in June, 2025
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

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
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

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 -> 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

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 -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 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

easy site to navigate

Posted By Curt's Cabochons in June, 2025
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

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
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

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 -> 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

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 -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 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