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: 391023
Weight: 1.33ct
Size: 13.3 x 3.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 38.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 706848
Weight: 1.25ct
Size: 10.1 x 5.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 3.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 385867
Weight: 3.16ct (total)
Size: 4.6 x 4.6 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 20.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 460715
Weight: 5.42ct
Size: 12 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 50.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 712664
Weight: 4.09ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 58.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 692989
Weight: 22.16ct
Size: 26.8 x 10.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 7.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 677824
Weight: 0.12ct (total)
Size: 1.9 x 1.8 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 72.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 730871
Weight: 12.36ct (total)
Size: 18.2 x 15.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 8.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 448672
Weight: 3.95ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 13.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 636402
Weight: 8.98ct
Size: 13.7 x 10.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 311130
Weight: 1.91ct
Size: 12 x 8.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 100.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 693229
Weight: 18.88ct
Size: 18 x 14.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 158.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 438069
Weight: 0.88ct
Size: 13.2 x 2.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 29.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 539703
Weight: 2.19ct
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 42.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 414600
Weight: 7.37ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 48.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 706501
Weight: 6.49ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 640032
Weight: 1.88ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 47.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 465298
Weight: 4.47ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 39.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 715840
Weight: 4.12ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 39.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 472168
Weight: 6.97ct
Size: 12.7 x 9.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 27.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 491465
Weight: 20.70ct
Size: 30.6 x 14.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 451385
Weight: 2.78ct (total)
Size: 4.6 x 4.5 mm
Clarity: VS
Content: 5 pcs
Price: $ 25.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 428643
Weight: 5.52ct
Size: 13 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 43.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 494022
Weight: 6.14ct
Size: 15 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 24.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 494023
Weight: 3.94ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 14.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 482559
Weight: 3.30ct (total)
Size: 4.8 x 2.9 mm
Clarity: VS
Content: 20 pcs
Price: $ 217.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 376474
Weight: 2.39ct
Size: 7.9 x 7.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 18.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 682710
Weight: 0.27ct (total)
Size: 3 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 154.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 548107
Weight: 1.37ct
Size: 7.5 x 4.8 mm
Clarity: VS
Content: 1 pc
Price: $ 27.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 567407
Weight: 0.24ct (total)
Size: 3 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 469.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 565353
Weight: 2.01ct
Size: 7.3 x 5.8 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 45.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 691433
Weight: 1.25ct
Size: 12.3 x 5.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 56.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 359862
Weight: 23.55ct
Size: 21.9 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 62.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 389999
Weight: 19.68ct
Size: 24.7 x 16.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 51.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 660646
Weight: 1.96ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 400144
Weight: 6.73ct (total)
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 22.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 693983
Weight: 2.04ct
Size: 7.8 x 5.1 mm
Clarity: VS
Content: 1 pc
Price: $ 67.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 672666
Weight: 1.41ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 33.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 636443
Weight: 0.81ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 500233
Weight: 1.84ct
Size: 12.1 x 6.1 mm
Clarity: VS
Price: $ 17.00
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 693847
Weight: 4.65ct
Size: 10.8 x 6.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 154.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 718998
Weight: 1.16ct
Size: 6.1 x 4.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 20.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 606964
Weight: 5.55ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 36.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 713744
Weight: 0.77ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 12.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 386413
Weight: 5.03ct
Size: 18.2 x 10.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 44.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 625398
Weight: 2.16ct (total)
Size: 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 40.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 371107
Weight: 26.64ct (total)
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 35.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 433787
Weight: 4.79ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 31.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 707113
Weight: 2.44ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 736596
Weight: 32.77ct
Size: 28.2 x 19.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 30.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 343076
Weight: 3.57ct
Size: 10 x 10 mm (calibrated)
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 11.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 503987
Weight: 1.78ct
Size: 7.4 x 7.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 12.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 566673
Weight: 3.97ct
Size: 12 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 26.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 483624
Weight: 1.03ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 74.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 392707
Weight: 14.52ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 95.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 492542
Weight: 11.40ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 82.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 448263
Weight: 3.01ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 15.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 530512
Weight: avg. 4.43 ct / each
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Price: $ 5.85
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 456213
Weight: 4.01ct
Size: 12.4 x 8.7 mm
Clarity: VS
Content: 1 pc
Price: $ 37.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 545097
Weight: 2.48ct
Size: 9 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 18.49
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
188
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've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoyed shopping.

Posted By Chris in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good. I ts very user friendly.

Posted By Shalini in June, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga in May, 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

Very professional site

Posted By JR in January, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 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've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoyed shopping.

Posted By Chris in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good. I ts very user friendly.

Posted By Shalini in June, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga in May, 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

Very professional site

Posted By JR in January, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 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