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: 716456
Weight: 2.85ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 27.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 388704
Weight: 1.07ct
Size: 6.6 x 5.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 68.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 613436
Weight: 0.44ct
Size: 5 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 27.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 686151
Weight: 0.19ct
Size: 5.6 x 3 mm
Clarity: VVS
Content: 1 pc
Price: $ 9.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 727328
Weight: 0.82ct
Size: 5.8 x 4.7 mm
Clarity: VS
Content: 1 pc
Price: $ 14.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 642608
Weight: 1.13ct
Size: 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 52.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 400477
Weight: 1.10ct
Size: 6.4 x 5.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 160.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 647539
Weight: 22.19ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 29.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 458437
Weight: 3.87ct
Size: 14.2 x 9.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 35.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 431389
Weight: 2.28ct
Size: 7.8 x 7.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 54.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 686099
Weight: 4.81ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 660645
Weight: 1.94ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 678400
Weight: 19.80ct (total)
Size: 23.3 x 11.4 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 23.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 645220
Weight: 1.96ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 4.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 708653
Weight: 1.28ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 690458
Weight: 30.06ct
Size: 22.7 x 18.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 588.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 411537
Weight: 1.01ct
Size: 5.7 x 4.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 54.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 724959
Weight: 1.14ct
Size: 7.8 x 3.9 mm
Clarity: VS
Content: 1 pc
Price: $ 47.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 713656
Weight: 20.06ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 168.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 715007
Weight: 15.42ct (total)
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 33.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 384211
Weight: 7.56ct
Size: 13 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 972.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 479047
Weight: 2.82ct (total)
Size: 10.2 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 29.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 487178
Weight: 20.52ct
Size: 24.4 x 19.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 518198
Weight: 1.15ct
Size: 7.1 x 5.9 mm
Clarity: VS
Content: 1 pc
Price: $ 22.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 709374
Weight: 0.89ct
Size: 10.2 x 4.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 7.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 731124
Weight: 18.64ct
Size: 19 x 19 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 22.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 730072
Weight: 2.02ct
Size: 15.1 x 4.4 mm
Clarity: VS
Content: 1 pc
Price: $ 121.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 672080
Weight: 1.75ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 42.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 451258
Weight: 2.27ct (total)
Size: 4.8 x 4.8 mm
Clarity: VS
Content: 4 pcs
Price: $ 20.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 718001
Weight: 1.56ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 46.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 518681
Weight: 40.28ct
Size: 25.8 x 17.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 47.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 377898
Weight: 15.75ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 62.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 526769
Weight: 0.90ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 9.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 605572
Weight: 17.33ct
Size: 18 x 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 160.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 695895
Weight: 4.80ct
Size: 10 x 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 144.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 723835
Weight: 1.91ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 18.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 594678
Weight: 1.76ct
Size: 8.1 x 6.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 41.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 700040
Weight: 0.47ct
Size: 4.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 28.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 472435
Weight: 6.13ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 24.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 527260
Weight: 10.37ct (total)
Size: 15.5 x 10.6 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 19.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 594033
Weight: 1.47ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 58.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 450785
Weight: 6.68ct
Size: 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 61.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 684394
Weight: 1.38ct
Size: 7 x 7 mm (calibrated)
Clarity: VVS-VS
Price: $ 13.25
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 682041
Weight: 0.52ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 4.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 722786
Weight: 0.49ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Price: $ 14.70
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 730029
Weight: 0.26ct
Size: 5 x 3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 12.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 660039
Weight: 10.76ct (total)
Size: 11 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 21.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 673894
Weight: 7.85ct
Size: 15.9 x 8.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 141.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 555600
Weight: 1.56ct
Size: 7.4 x 5.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 41.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 718012
Weight: 1.09ct (total)
Size: 5 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 32.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 461393
Weight: 2.02ct (total)
Size: 4.6 x 3.7 mm
Clarity: VS
Content: 5 pcs
Price: $ 266.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 711518
Weight: 4.50ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 64.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 688083
Weight: 8.66ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 450144
Weight: 2.91ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 26.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 711705
Weight: 0.80ct
Size: 6 x 4.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 15.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 452447
Weight: 0.80ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 36.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 727060
Weight: 1.07ct
Size: 10 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 32.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 709806
Weight: 1.48ct
Size: 7.3 x 5.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 481636
Weight: 21.41ct
Size: 18.6 x 17.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 30.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 474189
Weight: 1.54ct
Size: 7.8 x 5.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 6.10
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
141
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

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

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones. .

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought many stones from GemsSelect and have been very satisfied with all!I will continue to buy and recommend this site!

Posted By DG in July, 2024
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

I love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Helpselect accomplished all personal growth goals

Posted By Mike in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Ive been looking for a place to buy loose gemstones for years and was thrilled when I found this site

Posted By Bern in October, 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

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

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

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones. .

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have bought many stones from GemsSelect and have been very satisfied with all!I will continue to buy and recommend this site!

Posted By DG in July, 2024
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

I love the gems and your website, every time I want to buy I usually spend between 6 and 8 hours on your website.

Posted By Bryan De David in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Helpselect accomplished all personal growth goals

Posted By Mike in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Ive been looking for a place to buy loose gemstones for years and was thrilled when I found this site

Posted By Bern in October, 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

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