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: 719560
Weight: 0.88ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 547257
Weight: 2.77ct
Size: 9 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 18.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 457087
Weight: 1.73ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 15.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 475189
Weight: 24.44ct (total)
Size: 19.3 x 13.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 58.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 401488
Weight: 16.10ct
Size: 14 x 14 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 53.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 480406
Weight: 2.23ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: Translucent
Content: 4 pcs
Price: $ 20.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 463344
Weight: 3.81ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 27.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 725598
Weight: 0.68ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 6.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 687406
Weight: 13.53ct
Size: 24.4 x 14.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 39.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 514332
Weight: 20.83ct (total)
Size: 18.6 x 10.5 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 54.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 730296
Weight: 81.57ct
Size: 39.2 x 36.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 78.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 518909
Weight: 4.80ct
Size: 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 35.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 725589
Weight: 0.90ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 7.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 710496
Weight: 6.19ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 4.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 499919
Weight: 26.48ct
Size: 32.4 x 13.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 20.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 680786
Weight: 1.09ct
Size: 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 57.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 464372
Weight: 4.03ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 37.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 731141
Weight: 1.32ct (total)
Size: 5.7 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 10.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 664222
Weight: 1.43ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 15.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 542596
Weight: 0.88ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 39.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 712474
Weight: 0.92ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 2.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 650882
Weight: 21.38ct
Size: 26.1 x 18 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 426964
Weight: 2.95ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 15.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 699565
Weight: 33.09ct
Size: 25.6 x 22.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 27.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 635627
Weight: 8.46ct
Size: 19.6 x 12.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 736575
Weight: 8.24ct
Size: 17.5 x 11.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 689703
Weight: 2.27ct
Size: 10 x 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 68.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 715414
Weight: 0.44ct
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 27.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 387073
Weight: 5.63ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 44.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 682010
Weight: 6.18ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 7.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 359779
Weight: 18.53ct
Size: 21.9 x 16 mm
Clarity: Opaque
Content: 1 pc
Price: $ 48.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 689600
Weight: 2.45ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 73.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 604638
Weight: 13.73ct
Size: 18.9 x 12.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 67.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 617880
Weight: avg. 2.51 ct / each
Size: 8 mm (calibrated)
Clarity: Translucent
Price: $ 4.94
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 730263
Weight: 6.36ct
Size: 16 x 12 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 508.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 557824
Weight: 3.65ct
Size: 9.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 673292
Weight: 1.48ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 35.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 712022
Weight: 15.04ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 40.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 431387
Weight: 2.57ct
Size: 7.4 x 7.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 61.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 379571
Weight: 3.05ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 193.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 471475
Weight: 62.18ct
Size: 42.5 x 34.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 50.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 704885
Weight: 1.68ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 42.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 601883
Weight: 20.08ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 106.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 688979
Weight: 1.41ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 13.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 484755
Weight: 2.64ct
Size: 8.1 x 7.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 17.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 539861
Weight: 1.44ct
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 29.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 711030
Weight: 18.76ct
Size: 18 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 157.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 655857
Weight: 1.25ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 30.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 659814
Weight: 4.12ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 8.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 633488
Weight: 6.47ct
Size: 12.5 x 9.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 19.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 555107
Weight: 1.15ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 43.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 547735
Weight: 4.03ct
Size: 11.4 x 9.5 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 120.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 634940
Weight: 1.51ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 33.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 511078
Weight: 7.43ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 58.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 521575
Weight: 22.00ct
Size: 22.3 x 19.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 174.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 699629
Weight: 0.77ct
Size: 5.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 46.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 388551
Weight: 0.91ct
Size: 6.4 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 39.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 606008
Weight: 6.83ct
Size: 15 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 90.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 728142
Weight: 1.75ct
Size: 7.5 x 6.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 454720
Weight: 9.71ct
Size: 19.6 x 13.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 16.27
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
375
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

Excellent selection and easy to use, well done site

Posted By Steph in December, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I found the website easy to work with. The gemstones are lovely.

Posted By Sophie-Tiger in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love Gem Select! When you order what you see is what you get. As soon as you make payment that particular gem is taken off the photo album. That way the one you select is a one of that kind.

Posted By Desertchick in March, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Excellent selection of stones -including ones I had never heard of before -nice site and fairly easy to use

Posted By DrD in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always excellent quality and service from GemSelect

Posted By Mike B. in September, 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

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

Excellent selection and easy to use, well done site

Posted By Steph in December, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

Love the ease of access. Easy to find what you are looking for, and fair pricing.

Posted By NickBehnke in October, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I found the website easy to work with. The gemstones are lovely.

Posted By Sophie-Tiger in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love Gem Select! When you order what you see is what you get. As soon as you make payment that particular gem is taken off the photo album. That way the one you select is a one of that kind.

Posted By Desertchick in March, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Excellent selection of stones -including ones I had never heard of before -nice site and fairly easy to use

Posted By DrD in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always excellent quality and service from GemSelect

Posted By Mike B. in September, 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

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