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: 670729
Weight: 0.55ct (total)
Size: 4.6 x 2.9 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 19.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 435780
Weight: 7.30ct
Size: 15.1 x 11.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 23.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 646940
Weight: 2.49ct
Size: 10 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 74.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 696477
Weight: 74.64ct
Size: 44.6 x 28.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 134.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 384910
Weight: 5.22ct
Size: 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 40.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 585604
Weight: 64.77ct
Size: 45.8 x 27.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 715333
Weight: 1.11ct
Size: 9.4 x 7.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 159.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 558088
Weight: 4.29ct
Size: 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 37.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 243626
Weight: 6.93ct
Size: 12 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 41.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 610376
Weight: 114.96ct
Size: 39.9 x 27.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 885.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 642149
Weight: 2.93ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 17.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 700587
Weight: 10.47ct
Size: 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 8.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 663729
Weight: 2.26ct
Size: 9.8 x 6.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 460448
Weight: 1.15ct
Size: 6.3 x 5.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 3,187.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 644092
Weight: 3.09ct (total)
Size: 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 8.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 622093
Weight: 2.19ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS-VS
Price: $ 20.23
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 635489
Weight: 4.75ct
Size: 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 501454
Weight: 27.86ct
Size: 31.6 x 21.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 116.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 636523
Weight: 5.61ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 581492
Weight: 34.63ct
Size: 27.6 x 23.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 650584
Weight: 3.79ct (total)
Size: 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 31.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 610610
Weight: avg. 0.70 ct / each
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Price: $ 5.37
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 365863
Weight: 7.26ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 23.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 619976
Weight: 5.76ct
Size: 12 x 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 29.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 531493
Weight: 2.64ct
Size: 10.3 x 5.8 mm
Clarity: SI
Content: 1 pc
Price: $ 139.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 491728
Weight: 17.33ct (total)
Size: 19.9 x 10.1 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 16.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 406641
Weight: 24.65ct
Size: 18 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 59.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 593329
Weight: 1.45ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 22.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 712053
Weight: 60.73ct (total)
Size: 25.1 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 161.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 550568
Weight: 0.56ct
Size: 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 33.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 720091
Weight: 6.14ct
Size: 9.5 x 9.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 153.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 650063
Weight: 11.69ct
Size: 18.4 x 13.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 491087
Weight: 13.10ct (total)
Size: 9 mm (calibrated)
Clarity: Opaque
Content: 4 pcs
Price: $ 12.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 517342
Weight: 1.69ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 141.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 697703
Weight: 7.81ct
Size: 18.4 x 9 mm
Clarity: VVS
Content: 1 pc
Price: $ 56.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 434438
Weight: 31.82ct
Size: 20.7 x 18.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 210.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 472206
Weight: 51.51ct
Size: 33.9 x 29.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 50.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 593885
Weight: 12.15ct (total)
Size: 17 x 11.1 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 32.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 526650
Weight: 0.91ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 9.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 574063
Weight: 1.21ct (total)
Size: 6.1 x 4.2 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 9.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 388904
Weight: 0.98ct
Size: 8.8 x 4.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 62.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 720353
Weight: 1.52ct
Size: 7.4 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 146.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 693393
Weight: 3.43ct
Size: 10.4 x 8.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 12.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 458544
Weight: 0.88ct (total)
Size: 4.8 x 4.1 mm
Clarity: VS
Content: 2 pcs
Price: $ 159.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 558063
Weight: 3.75ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 23.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 555785
Weight: 0.60ct
Size: 7.1 x 3.5 mm
Clarity: VS
Content: 1 pc
Price: $ 86.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 545219
Weight: 2.82ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 567606
Weight: 3.50ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 23.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 715335
Weight: 2.03ct
Size: 9 x 5.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 243.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 710171
Weight: 2.93ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 707740
Weight: 6.22ct
Size: 16.4 x 9.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 44.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 523482
Weight: 0.60ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 11.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 691110
Weight: 1.09ct
Size: 13.8 x 5.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 58.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 664269
Weight: 1.98ct
Size: 8.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 14.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 536851
Weight: 0.93ct
Size: 6.6 x 3.8 mm
Clarity: VS
Content: 1 pc
Price: $ 38.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 585534
Weight: 34.91ct
Size: 31.4 x 19 mm
Clarity: Opaque
Content: 1 pc
Price: $ 20.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 555331
Weight: 1.11ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 29.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 569232
Weight: 2.08ct
Size: 9 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 41.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 675997
Weight: 6.37ct
Size: 12.7 x 11.5 mm
Clarity: Transparent
Price: $ 38.22
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 255621
Weight: 1.41ct (total)
Size: 3.5 mm (calibrated)
Clarity: VS
Content: 9 pcs
Price: $ 235.88
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
28
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 -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I was looking for

Posted By Lincolnpremier in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 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

easy site to navigate

Posted By Curt's Cabochons in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good products

Posted By Brave in October, 2024
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 -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard 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 -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I was looking for

Posted By Lincolnpremier in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

went well

Posted By Doug in May, 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

easy site to navigate

Posted By Curt's Cabochons in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Good products

Posted By Brave in October, 2024
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 -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard 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