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: 728236
Weight: 0.05ct
Size: 2.2 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 20.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 480348
Weight: 2.36ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: Translucent
Content: 4 pcs
Price: $ 21.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 464393
Weight: 4.18ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 38.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 715486
Weight: 5.78ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 55.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 672122
Weight: 0.89ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 400079
Weight: 6.91ct (total)
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 22.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 672547
Weight: 1.29ct
Size: 8.8 x 6.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 30.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 701025
Weight: 0.63ct
Size: 5.5 x 4.5 mm
Clarity: SI
Content: 1 pc
Price: $ 37.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 648291
Weight: 0.38ct
Size: 7 x 5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 364083
Weight: 36.17ct
Size: 23 x 16.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 65.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 546740
Weight: 1.25ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 9.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 664242
Weight: 2.30ct
Size: 8.1 x 6.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 11.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 730857
Weight: 15.57ct
Size: 23.9 x 20.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 695123
Weight: 8.27ct
Size: 12.7 x 10 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 248.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 447796
Weight: 1.22ct
Size: 6.2 x 5.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 775.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 688968
Weight: 2.17ct
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 11.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 627474
Weight: 0.90ct
Size: 5.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 16.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 540045
Weight: 1.19ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 726145
Weight: 0.41ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 3.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 454906
Weight: 8.22ct
Size: 18.9 x 11.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 13.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 721390
Weight: 0.63ct
Size: 8 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 11.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 724238
Weight: 13.31ct
Size: 14 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 15.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 664016
Weight: 1.97ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 9.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 664690
Weight: 1.12ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 24.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 456302
Weight: 1.90ct
Size: 11 x 7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 17.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 719579
Weight: 0.63ct
Size: 5.2 x 4.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 11.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 391179
Weight: 41.46ct (total)
Size: 37.1 x 19 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 39.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 694513
Weight: 34.01ct
Size: 33.9 x 20.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 608355
Weight: 3.24ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 2 pcs
Price: $ 81.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 660659
Weight: 2.18ct
Size: 8 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 735022
Weight: 0.09ct
Size: 3.1 x 2.1 mm
Clarity: VS
Content: 1 pc
Price: $ 63.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 474327
Weight: 3.27ct
Size: 9.8 x 9.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 30.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 552385
Weight: 0.99ct (total)
Size: 8 x 4.1 mm
Clarity: VS
Content: 2 pcs
Price: $ 6.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 491082
Weight: 5.75ct (total)
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 4 pcs
Price: $ 16.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 737152
Weight: 4.86ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 650877
Weight: 3.65ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 23.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 699195
Weight: 29.81ct
Size: 25 x 18 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 35.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 599166
Weight: 5.32ct
Size: 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 17.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 485303
Weight: 6.31ct
Size: 14 x 14 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 16.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 261622
Weight: 3.05ct (total)
Size: 5.1 x 2.6 mm
Clarity: VS
Content: 20 pcs
Price: $ 161.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 636055
Weight: 1.09ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 19.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 635160
Weight: 1.31ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 34.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 480931
Weight: 2.42ct (total)
Size: 5.4 x 3.8 mm
Clarity: VS
Content: 5 pcs
Price: $ 22.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 563786
Weight: 0.92ct
Size: 7.5 x 5.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 14.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 517250
Weight: 34.44ct
Size: 26.7 x 19.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 35.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 720529
Weight: 1.47ct
Size: 7.2 x 5.6 mm
Clarity: VS
Content: 1 pc
Price: $ 141.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 324053
Weight: 2.79ct (total)
Size: 8 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 23.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 578586
Weight: 18.03ct
Size: 24.7 x 16.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 35.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 645986
Weight: 7.24ct
Size: 19.4 x 8.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 475943
Weight: 5.16ct
Size: 11.9 x 9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 27.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 463007
Weight: 4.69ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 37.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 554443
Weight: 0.84ct
Size: 9 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 23.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 707198
Weight: 3.91ct
Size: 11.5 x 8.9 mm
Clarity: VS
Content: 1 pc
Price: $ 37.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 627902
Weight: 1.04ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 19.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 478272
Weight: 8.47ct
Size: 18 x 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 77.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 428576
Weight: 3.42ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 9.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 733769
Weight: 6.45ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 58.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 650399
Weight: 1.33ct
Size: 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 11.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 715735
Weight: 8.40ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 80.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 701891
Weight: 5.60ct
Size: 16.7 x 7.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.60
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
239
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 -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
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

GemSelect website simple to use. I recommend it to non-trade clients looking for gems.

Posted By GemJocky in July, 2024
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

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Always excellent quality and service from GemSelect

Posted By Mike B. in September, 2024
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

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

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 -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 2025
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

GemSelect website simple to use. I recommend it to non-trade clients looking for gems.

Posted By GemJocky in July, 2024
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

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was very good and concise.

Posted By Whydothey in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Always excellent quality and service from GemSelect

Posted By Mike B. in September, 2024
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

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

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