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: 437688
Weight: 2.40ct
Size: 9.1 x 6.5 mm
Clarity: VS
Content: 1 pc
Price: $ 110.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 562616
Weight: 1.51ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 11.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 404525
Weight: 13.84ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 91.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 433455
Weight: 3.78ct (total)
Size: 6 mm (calibrated)
Clarity: VS-SI
Content: 4 pcs
Price: $ 63.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 400325
Weight: 3.18ct
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 10.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 694091
Weight: 30.88ct
Size: 33.1 x 11 mm
Clarity: Opaque
Content: 1 pc
Price: $ 3.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 690539
Weight: 36.19ct (total)
Size: 27.8 x 17.5 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 849.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 498839
Weight: 0.77ct
Size: 5.8 mm
Clarity: VS
Content: 1 pc
Price: $ 40.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 519043
Weight: 2.03ct
Size: 8.5 x 7.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 44.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 367743
Weight: 4.41ct
Size: 13.4 x 7.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 29.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 700227
Weight: 18.88ct
Size: 22.1 x 14.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 735809
Weight: 21.39ct
Size: 34.4 x 15.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 17.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 431832
Weight: 3.22ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 5 pcs
Price: $ 33.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 727855
Weight: 0.66ct
Size: 6 x 5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 3.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 485199
Weight: 7.98ct (total)
Size: 12 x 12 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 42.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 569769
Weight: 5.63ct (total)
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 41.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 416430
Weight: 2.01ct
Size: 21.9 x 3.6 mm
Clarity: VS
Content: 1 pc
Price: $ 66.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 431056
Weight: 1.54ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 16.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 368341
Weight: 5.11ct (total)
Size: 8.6 x 6.9 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 33.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 554210
Weight: 1.13ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 29.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 714214
Weight: 0.47ct
Size: 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 14.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 476868
Weight: 40.52ct
Size: 25.6 x 17 mm
Clarity: Opaque
Content: 1 pc
Price: $ 160.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 386328
Weight: 6.30ct (total)
Size: 16.1 x 9.4 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 56.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 724535
Weight: 0.61ct
Size: 8.6 x 4.6 mm
Clarity: VS
Content: 1 pc
Price: $ 18.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 725310
Weight: 9.48ct
Size: 13.4 x 12.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 10.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 670673
Weight: 0.90ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 5.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 341752
Weight: 12.30ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 24.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 631615
Weight: 10.02ct
Size: 20.4 x 10.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 45.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 724873
Weight: 0.88ct
Size: 8.1 x 3.7 mm
Clarity: VS
Content: 1 pc
Price: $ 36.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 699690
Weight: 0.53ct
Size: 4.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 31.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 688876
Weight: 1.02ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 9.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 737111
Weight: 17.31ct
Size: 28.2 x 18.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 24.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 501970
Weight: 1.34ct
Size: 11.6 x 3.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 44.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 532370
Weight: 5.78ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 41.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 686697
Weight: 2.44ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 2.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 467077
Weight: 0.48ct
Size: 7 x 4.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 34.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 453734
Weight: 2.01ct
Size: 11 x 8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 18.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 648501
Weight: 2.31ct (total)
Size: 7 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 18.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 338235
Weight: 10.92ct
Size: 11 x 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 36.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 570067
Weight: 3.18ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 23.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 706910
Weight: 2.18ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 376647
Weight: 3.29ct
Size: 9.4 x 8.3 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 30.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 476906
Weight: 17.43ct
Size: 12.6 x 12.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 69.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 569235
Weight: 2.12ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 42.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 721161
Weight: 0.50ct
Size: 8 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 4.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 668897
Weight: 8.85ct
Size: 22.7 x 10.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 191.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 681884
Weight: 7.36ct
Size: 13.4 x 11.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 44.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 650028
Weight: 10.52ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 7.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 678150
Weight: 2.60ct
Size: 10 x 7 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 6.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 392328
Weight: 7.80ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 51.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 693803
Weight: 4.83ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 160.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 724536
Weight: 0.85ct
Size: 10 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 25.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 698698
Weight: 1.63ct
Size: 7.2 x 6.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 9.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 710501
Weight: 6.30ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 4.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 479428
Weight: 2.76ct (total)
Size: 10.1 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 29.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 366576
Weight: 1.13ct
Size: 8 x 5.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 158.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 673287
Weight: 1.40ct
Size: 7.6 x 5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 5.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 485274
Weight: 10.37ct (total)
Size: 12 x 12 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 54.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 342857
Weight: 3.63ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 10.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 728119
Weight: 3.40ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 6.80
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
632
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 -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
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

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought from you before and have found your gems exceed my expectations. I have been very satisfied with all gems sent to me. I will be back. Thanks....

Posted By Dork in September, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 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

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and convenient

Posted By Butch in September, 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 -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
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

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought from you before and have found your gems exceed my expectations. I have been very satisfied with all gems sent to me. I will be back. Thanks....

Posted By Dork in September, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 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

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy and convenient

Posted By Butch in September, 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