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: 699810
Weight: 6.27ct
Size: 12.9 x 10.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 6.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 710176
Weight: 2.70ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 22.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 694721
Weight: 7.27ct
Size: 17.8 x 7.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 218.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 574848
Weight: 7.28ct
Size: 15.2 x 10.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 65.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 671940
Weight: 1.71ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 41.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 694236
Weight: 0.83ct
Size: 10.4 x 3.8 mm
Clarity: VS
Content: 1 pc
Price: $ 24.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 565270
Weight: 24.98ct
Size: 29.9 x 20.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 18.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 573668
Weight: 2.64ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 58.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 472824
Weight: 2.74ct
Size: 12 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 37.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 715732
Weight: 10.11ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 97.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 671016
Weight: 37.60ct
Size: 29.5 x 18.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 97.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 435506
Weight: 3.69ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 24.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 526268
Weight: 2.54ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 695042
Weight: 34.30ct
Size: 32.8 x 19.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 710439
Weight: 1.24ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 22.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 681799
Weight: 33.16ct
Size: 40.6 x 15.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 318.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 416064
Weight: 1.84ct
Size: 17.3 x 3.7 mm
Clarity: VS
Content: 1 pc
Price: $ 58.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 560340
Weight: 4.62ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 392305
Weight: 74.01ct
Size: 35.3 x 23.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 71.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 451236
Weight: 1.46ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 13.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 447527
Weight: 72.89ct (total)
Size: 15.6 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 192.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 490570
Weight: 4.94ct
Size: 14 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 35.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 586427
Weight: 1.68ct
Size: 7.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 110.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 712089
Weight: 7.50ct (total)
Size: 12 x 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 19.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 687418
Weight: 7.43ct (total)
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 21.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 672909
Weight: 10.91ct (total)
Size: 20.9 x 11.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 30.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 322584
Weight: 1.86ct
Size: 7.3 x 6.9 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 12.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 418464
Weight: 12.76ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 25.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 312704
Weight: 3.16ct
Size: 10 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 9.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 410358
Weight: 4.29ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 28.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 389618
Weight: 2.34ct (total)
Size: 6.7 x 5.5 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 15.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 687829
Weight: 8.99ct
Size: 21.8 x 14.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 534779
Weight: 3.09ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 723022
Weight: 0.56ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 16.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 732056
Weight: 0.86ct
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 20.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 620794
Weight: 2.01ct
Size: 12 x 6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 725826
Weight: 1.47ct
Size: 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 58.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 546881
Weight: 3.66ct
Size: 11 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 680688
Weight: 0.96ct
Size: 7 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 28.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 485886
Weight: 6.83ct
Size: 13.6 x 11.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 57.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 487847
Weight: 3.52ct
Size: 10.5 x 8.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 438129
Weight: 17.09ct
Size: 23.9 x 10.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 410.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 713959
Weight: 1.70ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 14.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 418404
Weight: 7.30ct
Size: 14 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 38.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 606940
Weight: 23.12ct (total)
Size: 18.4 x 12.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 36.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 526871
Weight: 3.45ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 24.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 648892
Weight: 15.90ct
Size: 23.9 x 17.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 410657
Weight: 10.22ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 67.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 655860
Weight: 1.27ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 30.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 677996
Weight: 21.94ct
Size: 32.7 x 19 mm
Clarity: Opaque
Content: 1 pc
Price: $ 27.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 707073
Weight: 2.82ct
Size: 10.6 x 7.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 27.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 438764
Weight: 2.73ct (total)
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 53.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 716436
Weight: 10.14ct
Size: 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 97.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 683068
Weight: 22.52ct
Size: 27.3 x 15.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 216.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 712402
Weight: 3.58ct
Size: 14 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 9.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 472806
Weight: 25.44ct
Size: 27 x 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 33.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 643786
Weight: 2.05ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 49.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 693494
Weight: 4.19ct
Size: 10 x 7.3 mm
Clarity: VS
Content: 1 pc
Price: $ 138.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 473190
Weight: 0.73ct
Size: 9.4 x 4.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 53.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 510915
Weight: 28.62ct (total)
Size: 21.1 x 13.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 61.58
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
646
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 -> 7 star ratings

Okay thank you.

Posted By Bepc61 in March, 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

Im not a jeweler, I buy for my personal use. My dad was a jewelry maker and I love gemstones.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Helpselect accomplished all personal growth goals

Posted By Mike in October, 2024
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

It was easy to find what I wanted

Posted By Villian in December, 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 -> 7 star ratings

Okay thank you.

Posted By Bepc61 in March, 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

Im not a jeweler, I buy for my personal use. My dad was a jewelry maker and I love gemstones.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Helpselect accomplished all personal growth goals

Posted By Mike in October, 2024
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

It was easy to find what I wanted

Posted By Villian in December, 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