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: 514330
Weight: 3.71ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 29.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 686115
Weight: 8.85ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 465777
Weight: 8.20ct
Size: 14 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 16.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 537485
Weight: 0.98ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 12.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 636243
Weight: 5.92ct
Size: 13.2 x 11.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 41.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 660332
Weight: 3.64ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 8.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 478371
Weight: 1.01ct
Size: 5.7 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 42.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 470837
Weight: 9.39ct
Size: 11.1 x 10.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 361.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 389313
Weight: 0.94ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 40.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 541070
Weight: avg. 0.49 ct / each
Size: 6 x 4 mm (calibrated)
Clarity: VS
Price: $ 3.74
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 378641
Weight: 1.54ct
Size: 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 5,285.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 587311
Weight: 1.34ct
Size: 7.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 103.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 540976
Weight: avg. 1.11 ct / each
Size: 7 mm (calibrated)
Clarity: VS
Price: $ 7.34
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 635833
Weight: 6.36ct
Size: 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 18.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 458756
Weight: 5.37ct
Size: 15 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 49.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 495772
Weight: 1.23ct
Size: 6.6 x 5.6 mm
Clarity: VS
Content: 1 pc
Price: $ 112.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 573255
Weight: 5.06ct
Size: 11.7 x 11.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 40.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 438589
Weight: 1.14ct
Size: 5.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 30.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 714468
Weight: 3.57ct
Size: 11.1 x 6.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 1,242.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 547380
Weight: 1.16ct
Size: 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 8.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 518708
Weight: 2.82ct
Size: 8.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 18.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 692910
Weight: 21.61ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 181.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 561399
Weight: 0.72ct
Size: 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 39.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 398711
Weight: 7.21ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 19.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 691700
Weight: 0.82ct
Size: 5.3 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 49.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 516338
Weight: 1.29ct
Size: 6.7 x 5.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 102.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 597615
Weight: 2.05ct
Size: 8 x 8 mm (calibrated)
Clarity: VS
Price: $ 13.54
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 694868
Weight: 8.63ct
Size: 15 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 258.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 691686
Weight: 0.71ct
Size: 11.2 x 5.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 31.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 438077
Weight: 2.20ct
Size: 8.5 x 6.8 mm
Clarity: VS
Content: 1 pc
Price: $ 92.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 677976
Weight: 16.04ct
Size: 21.6 x 17.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 18.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 642966
Weight: 3.36ct
Size: 10.6 x 8.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 24.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 715458
Weight: 0.85ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 54.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 395461
Weight: 2.38ct (total)
Size: 5.2 x 4.2 mm
Clarity: VS
Content: 5 pcs
Price: $ 124.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 708503
Weight: 1.35ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 23.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 634664
Weight: 0.85ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Price: $ 15.30
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 677973
Weight: 0.23ct (total)
Size: 2.6 x 2.5 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 138.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 665017
Weight: 8.25ct
Size: 14 x 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 69.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 523862
Weight: 2.57ct
Size: 8.7 x 7.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 305.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 392503
Weight: 3.62ct
Size: 10.5 x 8.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 19.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 526121
Weight: 6.66ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 62.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 472182
Weight: 59.01ct
Size: 33.7 x 20.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 694427
Weight: 24.15ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 21.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 644196
Weight: 1.84ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 570023
Weight: 1.86ct
Size: 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 13.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 599839
Weight: 6.51ct
Size: 14.2 x 10 mm
Clarity: Transparent
Price: $ 29.14
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 691688
Weight: 1.27ct
Size: 10.7 x 5.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 68.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 617789
Weight: 39.86ct
Size: 47.3 x 25.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 37.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 594976
Weight: 14.41ct
Size: 17.2 x 16.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 57.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 564572
Weight: 0.46ct (total)
Size: 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 843.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 596660
Weight: 9.84ct
Size: 22.2 x 10.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 14.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 690806
Weight: 0.30ct
Size: 4.1 x 3.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 706355
Weight: 13.37ct
Size: 20.2 x 10.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 333.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 645938
Weight: 19.07ct
Size: 26.1 x 16.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 10.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 624920
Weight: 1.03ct
Size: 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 21.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 478448
Weight: 2.08ct (total)
Size: 5.9 x 4.3 mm
Clarity: VS-SI
Content: 3 pcs
Price: $ 228.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 466279
Weight: 7.46ct
Size: 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 14.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 528914
Weight: 24.25ct
Size: 34.9 x 9.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 14.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 376785
Weight: 7.53ct (total)
Size: 7.8 x 7.1 mm
Clarity: Transparent
Content: 4 pcs
Price: $ 69.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 447134
Weight: 1.80ct
Size: 8 x 6.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 85.06
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
25
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

I love gemstones. My father was a jeweler & I used to shop for stones for him.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

Posted By Dia in March, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love the gems!

Posted By MM in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I'm happy.

Posted By Ray in January, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoyed shopping.

Posted By Chris in March, 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 -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
Source: Bizrate

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

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

I love gemstones. My father was a jeweler & I used to shop for stones for him.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

Posted By Dia in March, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I love the gems!

Posted By MM in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I'm happy.

Posted By Ray in January, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

everything was fine

Posted By Marc in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoyed shopping.

Posted By Chris in March, 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 -> 8 star ratings

Loved the lot buy options

Posted By BDG in October, 2024
Source: Bizrate

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

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