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: 449395
Weight: 1.60ct
Size: 13.3 x 4 mm
Clarity: VS
Content: 1 pc
Price: $ 63.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 446964
Weight: 31.86ct (total)
Size: 23.1 x 17.9 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 76.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 673073
Weight: 2.70ct (total)
Size: 10.8 x 6.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 7.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 598888
Weight: 5.66ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 27.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 712572
Weight: 1.10ct
Size: 7.2 x 5.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 21.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 725731
Weight: 0.39ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 3.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 509137
Weight: 35.44ct
Size: 23.9 x 18.7 mm
Clarity: IF
Content: 1 pc
Price: $ 327.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 721408
Weight: 45.78ct
Size: 36 x 20.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 54.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 517980
Weight: 2.16ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 19.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 721409
Weight: 50.58ct
Size: 37 x 21.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 447958
Weight: 29.13ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 115.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 382731
Weight: 15.50ct
Size: 16.1 x 14.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 328.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 686767
Weight: 0.29ct
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 13.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 481915
Weight: 2.81ct (total)
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 15 pcs
Price: $ 178.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 498305
Weight: 2.26ct (total)
Size: 10 x 5 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 23.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 449597
Weight: 21.20ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 195.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 720988
Weight: 66.44ct
Size: 33.2 x 33 mm
Clarity: Opaque
Content: 1 pc
Price: $ 79.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 647773
Weight: 37.19ct
Size: 21.1 x 14.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 89.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 393567
Weight: 3.88ct
Size: 9.5 x 9.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 25.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 727960
Weight: 2.35ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 5.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 660628
Weight: 16.48ct (total)
Size: 14.3 x 10.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 19.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 706721
Weight: 3.93ct (total)
Size: 8 x 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 9.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 642110
Weight: 1.15ct
Size: 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 53.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 552531
Weight: 0.93ct
Size: 7 x 7 mm (calibrated)
Clarity: VS
Price: $ 8.59
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 431673
Weight: 1.35ct
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 32.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 452172
Weight: 0.80ct
Size: 5.8 x 5 mm
Clarity: VS
Content: 1 pc
Price: $ 36.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 350509
Weight: 2.77ct (total)
Size: 3 x 3 mm (calibrated)
Clarity: Transparent
Content: 20 pcs
Price: $ 63.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 418430
Weight: 8.66ct
Size: 16.6 x 10.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 17.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 563857
Weight: 2.88ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 19.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 730075
Weight: 1.17ct
Size: 11.1 x 3.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 70.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 655373
Weight: 4.58ct
Size: 11.8 x 9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 60.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 711774
Weight: 11.18ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 29.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 729952
Weight: 3.54ct
Size: 12 x 10 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 339.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 689618
Weight: 2.00ct
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 11.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 643502
Weight: 1.82ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 4.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 692703
Weight: 24.28ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 203.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 697472
Weight: 0.74ct
Size: 7.3 x 5.1 mm
Clarity: VVS
Price: $ 4.44
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 548539
Weight: 1.53ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 31.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 451682
Weight: 1.24ct
Size: 8 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 76.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 700968
Weight: 0.45ct
Size: 4.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 27.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 723232
Weight: 0.06ct (total)
Size: 2 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 57.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 660217
Weight: 2.08ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 49.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 689339
Weight: 1.49ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 14.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 726942
Weight: 0.49ct
Size: 8 x 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 14.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 542787
Weight: 2.34ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Price: $ 21.62
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 548265
Weight: 9.07ct
Size: 15.7 x 11.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 359.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 483621
Weight: 0.98ct
Size: 6.3 x 5.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 64.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 449869
Weight: 2.41ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 731134
Weight: 7.41ct
Size: 18.4 x 9.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 464385
Weight: 3.63ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 33.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 471863
Weight: 7.32ct
Size: 13 x 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 1,932.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 674897
Weight: 5.86ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 49.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 674267
Weight: 12.15ct
Size: 18 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 218.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 712026
Weight: 5.77ct
Size: 14 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 15.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 658541
Weight: 11.22ct
Size: 16 x 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 94.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 537782
Weight: 0.97ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 12.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 697858
Weight: 6.60ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 55.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 391145
Weight: 29.46ct (total)
Size: 26.1 x 12.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 58.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 559010
Weight: 2.11ct
Size: 8.7 x 6.6 mm
Clarity: SI
Content: 1 pc
Price: $ 43.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 478069
Weight: 5.10ct
Size: 15 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 46.72
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
657
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

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought many stones from GemsSelect and have been very satisfied with all!I will continue to buy and recommend this site!

Posted By DG in July, 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 -> 10 star ratings

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 2024
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

Good. I ts very user friendly.

Posted By Shalini in June, 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

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

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought many stones from GemsSelect and have been very satisfied with all!I will continue to buy and recommend this site!

Posted By DG in July, 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 -> 10 star ratings

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 2024
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

Good. I ts very user friendly.

Posted By Shalini in June, 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

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