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: 427443
Weight: 2.11ct (total)
Size: 9 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 16.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 233272
Weight: 49.55ct
Size: 34.5 x 26.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 49.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 688867
Weight: 4.29ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 23.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 619149
Weight: 7.52ct
Size: 13 x 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 99.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 431395
Weight: 1.33ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 14.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 389340
Weight: 1.55ct
Size: 9 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 85.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 724504
Weight: 0.46ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 635572
Weight: 0.61ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 16.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 717940
Weight: 1.14ct (total)
Size: 5.2 x 3.9 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 34.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 475371
Weight: 7.16ct
Size: 16 x 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 66.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 608279
Weight: 1.14ct
Size: 7.1 x 6.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 650967
Weight: 1.34ct (total)
Size: 7 x 4.8 mm
Clarity: VS
Content: 2 pcs
Price: $ 12.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 343632
Weight: 53.73ct
Size: 33.4 x 17.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 106.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 723580
Weight: 1.61ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 650609
Weight: 4.89ct
Size: 13 x 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 20.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 387603
Weight: 4.78ct (total)
Size: 4.6 x 4.6 mm
Clarity: VVS-VS
Content: 10 pcs
Price: $ 31.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 578725
Weight: 2.67ct
Size: 8.6 x 8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 17.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 512413
Weight: avg. 0.76 ct / each
Size: 5 x 5 mm (calibrated)
Clarity: VS
Price: $ 5.03
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 713457
Weight: 1.64ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 27.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 439481
Weight: 6.82ct
Size: 14.6 x 10.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 135.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 684223
Weight: 1.00ct (total)
Size: 5 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 42.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 624231
Weight: 0.98ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 64.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 719316
Weight: 0.84ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 464164
Weight: 4.26ct
Size: 11 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 8.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 367739
Weight: 5.04ct
Size: 12 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 34.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 497647
Weight: 2.80ct (total)
Size: 6 x 5.8 mm
Clarity: VVS-VS
Content: 4 pcs
Price: $ 25.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 665029
Weight: 1.46ct
Size: 8.6 x 6.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 10.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 590243
Weight: 1.44ct
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 27.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 655163
Weight: 1.33ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 11.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 677848
Weight: 1.04ct
Size: 4.7 x 4.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 713.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 736683
Weight: 8.10ct
Size: 15.1 x 11.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 433890
Weight: 42.63ct
Size: 34.2 x 25 mm
Clarity: Opaque
Content: 1 pc
Price: $ 56.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 446004
Weight: 7.56ct
Size: 14 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 20.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 431475
Weight: 1.70ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 17.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 685855
Weight: 1.91ct
Size: 8.1 x 6.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 35.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 699298
Weight: 1.73ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 14.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 673718
Weight: 7.25ct
Size: 21 x 11.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 217.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 480914
Weight: 1.85ct (total)
Size: 5.5 x 3.6 mm
Clarity: VS
Content: 4 pcs
Price: $ 17.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 567106
Weight: 4.31ct
Size: 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 13.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 519040
Weight: 2.07ct
Size: 8.5 x 6.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 45.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 713398
Weight: 12.21ct
Size: 18 x 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 102.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 705520
Weight: 2.97ct
Size: 9 x 7 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 364208
Weight: 1.53ct
Size: 19.7 x 3.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 431523
Weight: 2.59ct
Size: 8 x 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 61.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 474483
Weight: 4.31ct
Size: 15.9 x 10.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 487382
Weight: 33.26ct
Size: 22.8 x 20.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 24.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 609434
Weight: 15.55ct (total)
Size: 13 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 20.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 385667
Weight: 4.79ct (total)
Size: 4.6 x 4.5 mm
Clarity: VVS-VS
Content: 10 pcs
Price: $ 31.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 557813
Weight: 4.42ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 46.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 420502
Weight: 16.14ct
Size: 18.9 x 15 mm
Clarity: Translucent
Content: 1 pc
Price: $ 63.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 474091
Weight: 4.42ct
Size: 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 40.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 683200
Weight: 6.99ct
Size: 14.7 x 9.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 64.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 539676
Weight: 2.50ct (total)
Size: 6 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 48.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 730466
Weight: 0.69ct
Size: 5.3 x 4.1 mm
Clarity: VS
Content: 1 pc
Price: $ 41.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 481344
Weight: 30.08ct
Size: 24.3 x 24 mm
Clarity: Opaque
Content: 1 pc
Price: $ 29.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 559920
Weight: 5.72ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 52.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 371388
Weight: 4.37ct (total)
Size: 8 x 5 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 28.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 718222
Weight: 1.09ct
Size: 6 x 4.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 32.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 713952
Weight: 2.08ct (total)
Size: 8.2 x 6.3 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 17.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 662873
Weight: 1.82ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.29
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
419
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

Good products

Posted By Brave in October, 2024
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

I love browsing the site and everything is easy to find. There is just so much I get lost for hours. Sometimes I wish there were videos of some gems, but other than that I love shopping with GemSelect and I have referred the site to many people many times. I work in the jewelry industry myself and I love to show off what Ive had made with my gems from GemSelect! Thank you

Posted By Antennaesglow in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

Easy website to navigate, lots of different varieties and options to choose from.

Posted By Brian in July, 2024
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

Great website, no hassle, easy check out and found everything I needed quickly

Posted By Chris 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 -> 10 star ratings

Good products

Posted By Brave in October, 2024
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

I love browsing the site and everything is easy to find. There is just so much I get lost for hours. Sometimes I wish there were videos of some gems, but other than that I love shopping with GemSelect and I have referred the site to many people many times. I work in the jewelry industry myself and I love to show off what Ive had made with my gems from GemSelect! Thank you

Posted By Antennaesglow in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, trusted quality. What I have purchased has always been as discribed.

Posted By Sterling in November, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

Easy website to navigate, lots of different varieties and options to choose from.

Posted By Brian in July, 2024
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

Great website, no hassle, easy check out and found everything I needed quickly

Posted By Chris 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