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: 513055
Weight: 1.08ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 5.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 648466
Weight: 2.37ct (total)
Size: 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 19.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 712870
Weight: 5.02ct
Size: 16 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 13.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 691853
Weight: 11.12ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 491899
Weight: 32.33ct (total)
Size: 18.3 x 13.8 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 37.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 694698
Weight: 4.64ct
Size: 10.4 x 8.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 139.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 454386
Weight: 0.75ct
Size: 7.4 x 5 mm
Clarity: VS
Content: 1 pc
Price: $ 31.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 736377
Weight: 1.68ct
Size: 9 x 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 59.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 722372
Weight: 1.00ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 48.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 719826
Weight: 0.77ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 552951
Weight: 1.82ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 10.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 357633
Weight: 1.39ct
Size: 7.4 x 6 mm
Clarity: VS
Content: 1 pc
Price: $ 64.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 712520
Weight: 3.76ct
Size: 12 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 8.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 665021
Weight: 1.37ct
Size: 7.9 x 6.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 9.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 685591
Weight: 21.10ct
Size: 28.9 x 13.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 21.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 715511
Weight: 2.78ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 701108
Weight: 0.50ct
Size: 5.1 x 4.3 mm
Clarity: VS
Content: 1 pc
Price: $ 17.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 545125
Weight: 2.45ct
Size: 8.6 x 6.5 mm
Clarity: VS
Content: 1 pc
Price: $ 223.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 631592
Weight: 5.79ct
Size: 12.9 x 10.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 69.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 426613
Weight: 22.46ct (total)
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 103.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 435385
Weight: 10.78ct
Size: 19.1 x 14.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 35.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 706447
Weight: 10.99ct
Size: 14 x 14 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 22.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 708248
Weight: 2.29ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 47.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 363521
Weight: 38.71ct
Size: 33.5 x 24.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 56.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 447174
Weight: 2.47ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 116.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 283429
Weight: 0.93ct
Size: 6.7 x 5.1 mm
Clarity: VS
Content: 1 pc
Price: $ 92.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 683059
Weight: 9.22ct
Size: 13.9 x 10.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 55.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 704465
Weight: 28.79ct
Size: 34.5 x 10.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 6.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 403856
Weight: 6.24ct
Size: 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 32.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 697051
Weight: 29.14ct
Size: 24 x 19.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 387720
Weight: 3.02ct (total)
Size: 4.6 x 4.5 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 19.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 350507
Weight: 2.81ct (total)
Size: 3 x 3 mm (calibrated)
Clarity: Transparent
Content: 20 pcs
Price: $ 64.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 501516
Weight: 6.13ct
Size: 20.2 x 11.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 25.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 698581
Weight: 7.30ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 61.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 684005
Weight: 0.63ct (total)
Size: 4.9 x 3.2 mm
Clarity: VS
Content: 2 pcs
Price: $ 26.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 517928
Weight: 2.60ct
Size: 9 x 7.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 51.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 546896
Weight: 1.28ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 10.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 488049
Weight: 38.76ct
Size: 30 x 24.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 25.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 358726
Weight: 1.49ct
Size: 6.9 x 6 mm
Clarity: VS
Content: 1 pc
Price: $ 49.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 517800
Weight: 2.36ct
Size: 8.6 x 7.2 mm
Clarity: VS
Content: 1 pc
Price: $ 51.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 715026
Weight: 4.67ct (total)
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 12.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 699113
Weight: 3.02ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 472491
Weight: 19.81ct (total)
Size: 19.7 x 11.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 39.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 647750
Weight: 1.09ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 28.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 463931
Weight: 5.09ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 10.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 460024
Weight: 4.20ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 38.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 631630
Weight: 0.97ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 29.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 540034
Weight: 0.84ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 453784
Weight: 3.06ct
Size: 11 x 7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 28.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 500446
Weight: 1.98ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 18.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 403385
Weight: 10.53ct
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 44.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 710357
Weight: 1.34ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 685601
Weight: 0.07ct (total)
Size: 1.9 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 24.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 691377
Weight: 3.78ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 204.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 735196
Weight: 2.62ct
Size: 8.7 x 6.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 125.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 669081
Weight: 10.76ct
Size: 15 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 232.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 448505
Weight: 1.38ct
Size: 7.5 x 5.4 mm
Clarity: VS
Content: 1 pc
Price: $ 878.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 713955
Weight: 1.88ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 15.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 467969
Weight: 5.63ct (total)
Size: 3.2 mm
Clarity: Transparent
Content: 30 pcs
Price: $ 37.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 563545
Weight: 0.85ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 19.08
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
524
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

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

The website was nice and I bought some gems

Posted By Jay in December, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

great experience

Posted By T in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
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

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

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Everything went well, the payment options are easily declined but, but once sorted out, everything is smooth. I have bought from GemSelect before and am consistently satisfied with them.

Posted By Gabe in August, 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

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

The website was nice and I bought some gems

Posted By Jay in December, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

great experience

Posted By T in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
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

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

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Everything went well, the payment options are easily declined but, but once sorted out, everything is smooth. I have bought from GemSelect before and am consistently satisfied with them.

Posted By Gabe in August, 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