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: 422637
Weight: 8.52ct
Size: 16.8 x 12.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 33.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 446636
Weight: 4.79ct
Size: 13 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 15.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 382185
Weight: 3.76ct (total)
Size: 3.5 mm (calibrated)
Clarity: VS
Content: 20 pcs
Price: $ 199.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 431798
Weight: 2.60ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 27.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 555607
Weight: 1.12ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 29.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 699524
Weight: 0.62ct
Size: 5.3 x 5.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 5.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 658689
Weight: 8.10ct
Size: 22.5 x 13.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 24.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 678104
Weight: 0.51ct
Size: 5 x 5 mm (calibrated)
Clarity: Transparent
Price: $ 4.28
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 370591
Weight: 25.54ct (total)
Size: 16 x 16 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 33.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 573999
Weight: 1.87ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 49.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 636974
Weight: 6.40ct
Size: 15.1 x 11.1 mm
Clarity: VS
Content: 1 pc
Price: $ 15.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 361817
Weight: 24.81ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 32.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 683324
Weight: 4.96ct
Size: 11.9 x 8.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 45.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 497516
Weight: 3.45ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 31.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 721744
Weight: 25.59ct
Size: 25 x 17.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 30.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 706852
Weight: 2.00ct
Size: 8 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 685281
Weight: 12.97ct
Size: 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 18.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 454730
Weight: 11.59ct
Size: 19.4 x 13.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 19.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 710243
Weight: 1.63ct
Size: 6.5 x 5.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 51.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 730989
Weight: 7.94ct
Size: 14.9 x 12.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 16.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 696047
Weight: 0.45ct
Size: 5 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 16.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 728234
Weight: 0.05ct
Size: 2.2 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 20.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 704568
Weight: 2.50ct
Size: 12 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 75.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 648938
Weight: 7.15ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 18.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 719922
Weight: 0.84ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 712836
Weight: 19.33ct
Size: 18 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 162.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 686318
Weight: 0.25ct
Size: 4.7 x 3.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 8.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 705328
Weight: 2.60ct
Size: 8.9 x 6.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 2.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 724289
Weight: 30.58ct
Size: 17.4 x 14.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 485321
Weight: 5.53ct
Size: 12 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 29.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 518942
Weight: 28.26ct
Size: 27.2 x 17.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 29.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 696607
Weight: 1.62ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 40.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 705619
Weight: 30.11ct
Size: 23.3 x 17.4 mm
Clarity: SI
Content: 1 pc
Price: $ 79.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 695589
Weight: 0.33ct
Size: 4.7 x 3.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 11.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 370437
Weight: 11.83ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 23.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 514795
Weight: 2.06ct
Size: 8.6 x 7.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 35.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 338905
Weight: 4.11ct
Size: 11 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 43.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 701313
Weight: 7.82ct
Size: 14.6 x 9.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 46.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 454142
Weight: 1.31ct
Size: 11.9 x 4.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 55.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 688847
Weight: 1.27ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 12.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 706759
Weight: 0.81ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 4.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 657913
Weight: 0.83ct
Size: 7.2 x 4.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 3.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 534203
Weight: 1.14ct
Size: 7 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 10.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 424018
Weight: 4.93ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 52.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 410656
Weight: 9.73ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 64.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 479212
Weight: 14.67ct (total)
Size: 13 x 9 mm (calibrated)
Clarity: Transparent
Content: 4 pcs
Price: $ 26.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 720603
Weight: 2.05ct (total)
Size: 6.9 x 5.3 mm
Clarity: VS
Content: 2 pcs
Price: $ 197.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 500836
Weight: 7.37ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 57.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 445944
Weight: 3.45ct
Size: 11.8 x 8.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 25.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 715425
Weight: 1.24ct
Size: 6.3 x 6.1 mm
Clarity: VS
Content: 1 pc
Price: $ 78.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 478166
Weight: 1.02ct
Size: 9.1 x 5.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 134.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 597650
Weight: 4.37ct (total)
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 6.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 699116
Weight: 3.28ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 27.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 728200
Weight: 0.81ct
Size: 5.9 x 4.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 4.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 659903
Weight: 11.05ct
Size: 22.5 x 14.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 34.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 566213
Weight: 8.55ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 33.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 710403
Weight: 1.12ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 20.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 517475
Weight: 11.57ct
Size: 16 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 16.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 733082
Weight: 0.43ct
Size: 6 x 4 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 18.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 650502
Weight: 25.08ct
Size: 29.6 x 20.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.05
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
243
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

Great site always looking for great deals and find them on this site

Posted By IRO5812 in July, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 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

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

I just bought some mystic quartz. Checkout was smooth and pleasant

Posted By Jay in July, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Site is easy to navigate - details on cut, polish, and finish work and techniques were helpful. 3d view or wireframe diagram of stones would be nice.

Posted By Tb in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I enjoy doing buisness with GemSelect. It is always a pleasure and you get what you ordered!

Posted By Ballpark in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

This was a great time as always. The only problem I had was deciding between all the beautiful and affordable stones that met my requirements. I love shopping for sapphires!

Posted By Phoenix in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D 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 -> 10 star ratings

Great site always looking for great deals and find them on this site

Posted By IRO5812 in July, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC in May, 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

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

I just bought some mystic quartz. Checkout was smooth and pleasant

Posted By Jay in July, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Site is easy to navigate - details on cut, polish, and finish work and techniques were helpful. 3d view or wireframe diagram of stones would be nice.

Posted By Tb in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I enjoy doing buisness with GemSelect. It is always a pleasure and you get what you ordered!

Posted By Ballpark in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

This was a great time as always. The only problem I had was deciding between all the beautiful and affordable stones that met my requirements. I love shopping for sapphires!

Posted By Phoenix in August, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D 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