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: 686273
Weight: 4.46ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 4.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 662715
Weight: 1.69ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 14.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 660578
Weight: 4.21ct (total)
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 5.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 714788
Weight: 0.39ct
Size: 4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 11.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 501825
Weight: 1.83ct
Size: 10 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 14.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 617770
Weight: 1.94ct
Size: 8.3 x 6.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 41.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 554873
Weight: 1.44ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 452166
Weight: 0.68ct
Size: 6.4 x 4.4 mm
Clarity: VS
Content: 1 pc
Price: $ 31.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 664856
Weight: 1.25ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 699239
Weight: 2.24ct
Size: 7.9 x 6.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 13.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 559411
Weight: 1.95ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 40.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 469752
Weight: 19.26ct
Size: 21.3 x 15 mm
Clarity: Translucent
Content: 1 pc
Price: $ 40.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 595159
Weight: 24.46ct (total)
Size: 25.2 x 14.8 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 64.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 349691
Weight: 1.00ct
Size: 16.6 x 2.7 mm
Clarity: VS
Content: 1 pc
Price: $ 29.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 394678
Weight: 11.84ct
Size: 15 x 15 mm (calibrated)
Clarity: VVS
Price: $ 46.88
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 418914
Weight: 4.67ct
Size: 14 x 9.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 9.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 357769
Weight: 3.62ct (total)
Size: 5.5 mm (calibrated)
Clarity: VS
Content: 5 pcs
Price: $ 171.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 674161
Weight: 3.96ct
Size: 14.4 x 11.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 118.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 684817
Weight: 25.43ct
Size: 25.1 x 18.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 25.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 721626
Weight: 12.69ct
Size: 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 15.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 713431
Weight: 16.89ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 141.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 704625
Weight: 1.23ct
Size: 10 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 36.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 454206
Weight: 0.90ct
Size: 9.8 x 4.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 735778
Weight: 13.24ct
Size: 30.2 x 17 mm
Clarity: Translucent
Content: 1 pc
Price: $ 10.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 512926
Weight: 1.87ct
Size: 8.1 x 6.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 40.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 717129
Weight: 0.74ct
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 15.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 636994
Weight: 2.26ct
Size: 9.4 x 7.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 712307
Weight: 6.97ct (total)
Size: 14 x 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 18.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 297167
Weight: 35.42ct
Size: 27.2 x 21.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 46.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 416005
Weight: 2.34ct
Size: 21.5 x 4.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 77.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 500829
Weight: 13.10ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 101.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 738978
Weight: 0.48ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 4.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 522425
Weight: 24.70ct
Size: 23.6 x 16.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 124.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 461515
Weight: 1.49ct (total)
Size: 4.6 x 3.8 mm
Clarity: VS
Content: 4 pcs
Price: $ 196.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 393517
Weight: 7.99ct
Size: 12.5 x 12.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 52.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 737156
Weight: 4.02ct
Size: 13 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 20.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 394385
Weight: 6.67ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 44.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 474108
Weight: 1.84ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 17.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 708816
Weight: 4.21ct
Size: 18.8 x 8.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 127.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 724008
Weight: 64.50ct
Size: 27.2 x 22.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 76.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 595179
Weight: 1.43ct
Size: 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 132.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 409444
Weight: 10.17ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 48.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 621208
Weight: 11.53ct
Size: 21.9 x 14.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 30.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 421978
Weight: 0.62ct
Size: 6.7 x 3.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 63.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 348772
Weight: 40.47ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 53.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 727326
Weight: 0.73ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 700568
Weight: 0.66ct
Size: 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 39.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 643705
Weight: 4.95ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 45.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 407756
Weight: 4.54ct
Size: 12.4 x 8.8 mm
Clarity: VS
Content: 1 pc
Price: $ 176.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 533515
Weight: 1.64ct
Size: 8.4 x 8.2 mm
Clarity: VS
Content: 1 pc
Price: $ 13.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 716323
Weight: 13.68ct
Size: 18 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 131.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 672186
Weight: 1.01ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 695436
Weight: 6.11ct
Size: 11 x 9.5 mm
Clarity: VS
Content: 1 pc
Price: $ 183.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 549144
Weight: 5.38ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 49.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 730038
Weight: 10.40ct
Size: 18 x 9.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 998.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 733128
Weight: 3.35ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 30.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 687736
Weight: 2.32ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 563534
Weight: 1.50ct
Size: 6.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 33.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 495363
Weight: 1.80ct
Size: 8 x 6.6 mm
Clarity: VS
Content: 1 pc
Price: $ 38.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 416659
Weight: 9.72ct
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 51.32
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
749
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

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
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

Excellent selection and easy to use, well done site

Posted By Steph in December, 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

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky in December, 2024
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

very good

Posted By Son Gift in January, 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

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
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

Excellent selection and easy to use, well done site

Posted By Steph in December, 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

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.

Posted By Razormane in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky in December, 2024
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

very good

Posted By Son Gift in January, 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