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: 700739
Weight: 58.28ct
Size: 42 x 25.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 31.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 690637
Weight: 0.26ct
Size: 4.1 x 3.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 418917
Weight: 14.66ct
Size: 18.5 x 14.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 29.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 448762
Weight: 8.10ct
Size: 15.1 x 11.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 26.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 433738
Weight: 5.25ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 34.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 639893
Weight: 0.61ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Price: $ 5.12
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 469335
Weight: 5.33ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 42.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 710356
Weight: 0.82ct
Size: 6.5 x 4.5 mm
Clarity: VS
Content: 1 pc
Price: $ 14.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 710774
Weight: 2.34ct
Size: 12 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 6.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 684519
Weight: 0.05ct
Size: 2.1 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 422617
Weight: 9.94ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 39.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 475091
Weight: 12.04ct
Size: 20.6 x 12.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 28.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 733127
Weight: 2.82ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 25.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 694538
Weight: 35.90ct
Size: 32.2 x 22.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 38.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 714341
Weight: 0.45ct
Size: 4.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 13.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 389038
Weight: 6.88ct (total)
Size: 9 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 45.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 478022
Weight: 1.00ct
Size: 9.6 x 5.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 132.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 397379
Weight: 6.47ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 42.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 677969
Weight: 0.12ct (total)
Size: 2 x 2 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 72.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 370760
Weight: 23.48ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 31.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 492476
Weight: 14.86ct
Size: 23.6 x 14.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 55.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 670940
Weight: 0.55ct
Size: 4.7 x 4.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 19.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 724978
Weight: 0.83ct
Size: 10.8 x 3.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 34.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 635378
Weight: 2.78ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 73.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 541717
Weight: 4.27ct (total)
Size: 8.5 x 6.9 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 85.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 379041
Weight: 17.48ct (total)
Size: 13 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 69.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 720531
Weight: 1.50ct
Size: 6.6 x 5.8 mm
Clarity: VS
Content: 1 pc
Price: $ 144.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 719382
Weight: 0.99ct
Size: 5.8 x 4.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 17.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 480421
Weight: 5.13ct (total)
Size: 6 x 4.2 mm
Clarity: Translucent
Content: 10 pcs
Price: $ 47.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 488623
Weight: 5.70ct
Size: 13.9 x 10.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 58.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 662675
Weight: 17.35ct (total)
Size: 21.1 x 14.6 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 12.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 687708
Weight: 0.92ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 8.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 732561
Weight: 9.36ct
Size: 15.9 x 10.6 mm
Clarity: VS
Content: 1 pc
Price: $ 336.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 700173
Weight: 0.27ct
Size: 3.7 mm
Clarity: SI
Content: 1 pc
Price: $ 16.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 382192
Weight: 3.49ct (total)
Size: 3.5 mm (calibrated)
Clarity: VS
Content: 20 pcs
Price: $ 184.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 684819
Weight: 13.09ct
Size: 23.2 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 395267
Weight: 2.32ct
Size: 9 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 45.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 705961
Weight: 1.38ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 11.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 710443
Weight: 0.77ct
Size: 5.5 x 4.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 13.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 477924
Weight: 8.04ct
Size: 18 x 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 73.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 381302
Weight: 1.82ct (total)
Size: 3.5 x 3.5 mm
Clarity: VS
Content: 5 pcs
Price: $ 46.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 511251
Weight: 0.65ct
Size: 5.5 x 4.5 mm
Clarity: VS
Content: 1 pc
Price: $ 38.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 616867
Weight: 0.78ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 56.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 723745
Weight: 9.87ct
Size: 13.1 x 10.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 423081
Weight: 44.98ct (total)
Size: 10 mm (calibrated)
Clarity: Transparent
Content: 6 pcs
Price: $ 86.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 343552
Weight: 40.69ct
Size: 31.9 x 25.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 80.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 639741
Weight: 0.38ct
Size: 5 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 39.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 418315
Weight: 6.40ct
Size: 15 x 10.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 12.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 626184
Weight: 1.21ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 31.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 721867
Weight: 20.61ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 433892
Weight: 3.09ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 28.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 732477
Weight: 5.85ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 52.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 416429
Weight: 2.21ct
Size: 20.5 x 3.3 mm
Clarity: VS
Content: 1 pc
Price: $ 72.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 447000
Weight: 48.23ct (total)
Size: 30.8 x 20 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 61.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 701031
Weight: 40.04ct
Size: 35.1 x 20.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 21.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 499202
Weight: 2.06ct
Size: 12 x 5.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 339.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 699721
Weight: 0.66ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 6.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 395342
Weight: 2.86ct
Size: 9 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 18.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 332925
Weight: 19.58ct
Size: 18 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 31.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 663456
Weight: 1.01ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 19.39
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
112
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

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 good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
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 -> 10 star ratings

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

Posted By Dia in March, 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 -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Appreciated the selection. Jadeite is hard to find under $100. Website has alot of variety.

Posted By Jess in February, 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

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 good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
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 -> 10 star ratings

went well

Posted By Doug in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

Posted By Dia in March, 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 -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Appreciated the selection. Jadeite is hard to find under $100. Website has alot of variety.

Posted By Jess in February, 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