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: 725177
Weight: 8.44ct
Size: 14 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 9.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 437380
Weight: 1.56ct
Size: 6.5 mm (calibrated)
Clarity: VVS-VS
Price: $ 41.18
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 519140
Weight: 1.38ct
Size: 10 x 6.2 mm
Clarity: VS
Content: 1 pc
Price: $ 127.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 475524
Weight: 4.23ct
Size: 11 x 8.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 22.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 451764
Weight: 3.06ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 26.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 427045
Weight: 9.34ct
Size: 14 x 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 308.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 735997
Weight: 19.07ct
Size: 33.3 x 13.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 691843
Weight: 64.74ct
Size: 25.7 x 21.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 80.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 732970
Weight: 0.59ct
Size: 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 14.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 602694
Weight: 3.25ct
Size: 12 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 30.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 547768
Weight: 1.69ct
Size: 7 x 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 34.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 351389
Weight: 5.79ct
Size: 17.8 x 8.8 mm
Clarity: VS
Content: 1 pc
Price: $ 53.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 571943
Weight: 1.00ct (total)
Size: 8.1 x 4.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 10.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 464343
Weight: 2.43ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 22.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 505065
Weight: 7.28ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 48.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 672038
Weight: 29.26ct
Size: 31.7 x 21.3 mm
Clarity: Translucent
Price: $ 35.11
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 735111
Weight: 1.17ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 70.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 479252
Weight: 2.69ct (total)
Size: 9.9 x 5 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 28.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 625376
Weight: 2.79ct
Size: 12.1 x 8.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 8.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 712666
Weight: 3.94ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 56.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 465769
Weight: 4.55ct (total)
Size: 12 x 6.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 48.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 710382
Weight: 3.07ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 426930
Weight: 9.95ct (total)
Size: 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 45.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 560570
Weight: 4.79ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 44.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 439504
Weight: 2.45ct (total)
Size: 5 x 4 mm (calibrated)
Clarity: VS
Content: 5 pcs
Price: $ 31.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 403693
Weight: 4.99ct
Size: 12 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 12.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 710771
Weight: 1.31ct
Size: 10 x 5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 3.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 462064
Weight: 7.46ct (total)
Size: 12 x 6 mm
Clarity: VVS-VS
Content: 4 pcs
Price: $ 88.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 644093
Weight: 2.92ct (total)
Size: 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 7.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 392923
Weight: 6.37ct (total)
Size: 12 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 42.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 533524
Weight: 1.66ct
Size: 8 x 8 mm (calibrated)
Clarity: VS
Price: $ 13.21
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 709187
Weight: 1.45ct (total)
Size: 7.1 x 5.3 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 29.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 428529
Weight: 3.49ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 9.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 624149
Weight: 2.27ct
Size: 8.8 x 7.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 13.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 651830
Weight: 9.32ct
Size: 14 x 14 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 28.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 708328
Weight: 6.58ct
Size: 16 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 47.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 719013
Weight: 1.09ct
Size: 6.1 x 4.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 19.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 662132
Weight: 12.78ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 15.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 408281
Weight: 7.81ct
Size: 12 x 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 18.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 736555
Weight: 10.75ct
Size: 19.6 x 12.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 718629
Weight: 6.96ct
Size: 12 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 31.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 707994
Weight: 6.93ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 11.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 730108
Weight: 0.88ct
Size: 7.7 x 4.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 52.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 605445
Weight: 24.61ct (total)
Size: 16 x 16 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 38.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 501190
Weight: 6.14ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 47.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 360238
Weight: 19.77ct
Size: 22.1 x 15.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 52.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 655073
Weight: 9.59ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 23.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 474709
Weight: 2.02ct
Size: 12.4 x 7.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 26.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 646873
Weight: 36.19ct
Size: 29.2 x 19.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 71.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 662163
Weight: 17.11ct
Size: 26.5 x 17.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 732996
Weight: 0.39ct
Size: 5.8 x 3.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 16.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 532551
Weight: 2.44ct (total)
Size: 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 17.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 346223
Weight: 2.77ct (total)
Size: 2.4 x 2.4 mm
Clarity: VVS-VS
Content: 30 pcs
Price: $ 310.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 371588
Weight: 4.99ct (total)
Size: 7.9 x 5.2 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 32.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 693456
Weight: 3.08ct
Size: 8.4 x 6.8 mm
Clarity: VS
Content: 1 pc
Price: $ 102.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 662701
Weight: 1.35ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 32.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 556980
Weight: 2.59ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 21.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 585535
Weight: 38.02ct
Size: 29.4 x 23.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 646584
Weight: 0.89ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 32.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 390277
Weight: 1.12ct
Size: 8.6 x 5.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 72.46
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
199
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 found exactly what I was looking for and ordered it. I like how you give information on the stones I'm buying. Glad I found you!

Posted By TheP in April, 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

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 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

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 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'm happy.

Posted By Ray in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent selection and easy to use, well done site

Posted By Steph in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All Good

Posted By Boru in July, 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 -> 10 star ratings

I found exactly what I was looking for and ordered it. I like how you give information on the stones I'm buying. Glad I found you!

Posted By TheP in April, 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

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 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

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 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'm happy.

Posted By Ray in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Excellent selection and easy to use, well done site

Posted By Steph in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All Good

Posted By Boru in July, 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