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: 451285
Weight: 1.66ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 15.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 497068
Weight: 2.35ct
Size: 9.1 x 7.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 42.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 706899
Weight: 2.04ct
Size: 8 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 478549
Weight: 0.65ct
Size: 6.4 x 4.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 27.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 392326
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: 618047
Weight: 25.88ct (total)
Size: 20 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 68.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 696557
Weight: 51.09ct
Size: 39.9 x 18.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 91.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 713718
Weight: 1.03ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 8.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 683065
Weight: 21.24ct (total)
Size: 13.4 x 11.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 127.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 688875
Weight: 0.93ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 8.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 713730
Weight: 0.88ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 14.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 554179
Weight: 8.14ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 61.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 476073
Weight: 3.45ct
Size: 9.5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 447887
Weight: 24.82ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 98.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 592321
Weight: 0.61ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 20.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 579547
Weight: 3.60ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 47.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 483564
Weight: 1.21ct
Size: 6.2 x 5.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 103.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 704696
Weight: 27.47ct
Size: 40.5 x 9.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 6.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 714359
Weight: 0.33ct
Size: 4.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 9.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 718236
Weight: 1.23ct (total)
Size: 5.3 x 4.2 mm
Clarity: VVS
Content: 2 pcs
Price: $ 36.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 715365
Weight: 1.35ct
Size: 10.6 x 4 mm
Clarity: VVS
Content: 1 pc
Price: $ 85.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 706455
Weight: 8.52ct
Size: 14 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 482270
Weight: 2.04ct
Size: 8.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 14.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 592330
Weight: 0.71ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 19.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 431732
Weight: 1.52ct
Size: 6.6 x 6.2 mm
Clarity: VS
Content: 1 pc
Price: $ 36.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 616876
Weight: 0.99ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 71.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 730756
Weight: 35.77ct
Size: 25 x 19.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 43.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 462679
Weight: 1.82ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 4 pcs
Price: $ 87.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 394775
Weight: 4.07ct
Size: 10 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 530486
Weight: 7.56ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 9.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 572339
Weight: 1.09ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 34.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 695146
Weight: 63.36ct
Size: 44.8 x 29 mm
Clarity: Translucent
Content: 1 pc
Price: $ 76.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 719391
Weight: 0.94ct
Size: 5.9 x 4.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 16.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 727936
Weight: 1.37ct
Size: 6.7 x 6.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 8.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 528905
Weight: 1.52ct
Size: 7.6 x 4.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 132.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 482555
Weight: 3.47ct (total)
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 20 pcs
Price: $ 229.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 735128
Weight: 0.91ct
Size: 6.9 x 6 mm
Clarity: SI
Content: 1 pc
Price: $ 54.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 562911
Weight: 4.10ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 627865
Weight: 1.51ct
Size: 7.8 x 5.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 23.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 445942
Weight: 3.05ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 18.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 670780
Weight: 0.45ct
Size: 5 x 4.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 16.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 700935
Weight: 16.34ct
Size: 16 x 16 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 15.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 693219
Weight: 8.95ct
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 7.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 536854
Weight: 0.98ct
Size: 5.9 x 4.2 mm
Clarity: VS
Content: 1 pc
Price: $ 40.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 728038
Weight: 0.06ct
Size: 2.5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 725544
Weight: 1.04ct
Size: 7.4 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 88.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 458674
Weight: 1.43ct (total)
Size: 4.4 x 3.5 mm
Clarity: VS
Content: 5 pcs
Price: $ 188.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 529471
Weight: 1.51ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 13.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 438365
Weight: 1.71ct
Size: 6.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 45.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 711443
Weight: 3.01ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 60.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 713836
Weight: 1.40ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 11.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 673488
Weight: 1.22ct
Size: 7 x 5.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 29.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 374180
Weight: 25.13ct (total)
Size: 17.6 x 8.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 239.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 462485
Weight: 1.51ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 4 pcs
Price: $ 79.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 392829
Weight: 2.73ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 72.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 735785
Weight: 13.68ct
Size: 24.9 x 12.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 11.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 713653
Weight: 19.35ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 162.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 711002
Weight: 8.95ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 23.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 411357
Weight: 1.21ct
Size: 6.8 x 4.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 65.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 578239
Weight: 0.85ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.88
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
99
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

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 -> 10 star ratings

I have ordered from Genselect before and always had a great experience. My go to source!

Posted By Kycaver in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience shopping and finding what I was looking for, the only improvement I could think of would be allowing to filter more than one size at a time.

Posted By Tlicious04 in September, 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

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

Great site always looking for great deals and find them on this site

Posted By IRO5812 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

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 -> 10 star ratings

I have ordered from Genselect before and always had a great experience. My go to source!

Posted By Kycaver in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience shopping and finding what I was looking for, the only improvement I could think of would be allowing to filter more than one size at a time.

Posted By Tlicious04 in September, 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

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

Great site always looking for great deals and find them on this site

Posted By IRO5812 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