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: 716102
Weight: 3.01ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 28.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 718262
Weight: 0.60ct
Size: 5.2 x 4.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 18.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 697599
Weight: 0.53ct (total)
Size: 3.5 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 11.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 606563
Weight: 4.11ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 54.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 538294
Weight: 2.04ct
Size: 12.7 x 4.3 mm
Clarity: VS
Content: 1 pc
Price: $ 185.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 661966
Weight: 1.57ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 3.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 732863
Weight: 0.67ct
Size: 6 x 5.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 5.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 546882
Weight: 2.90ct
Size: 8.7 x 8.6 mm
Clarity: VS
Content: 1 pc
Price: $ 22.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 650872
Weight: 4.44ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 28.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 592219
Weight: 0.64ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Price: $ 21.12
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 532235
Weight: 12.58ct
Size: 15.4 x 12.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 91.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 457111
Weight: 2.70ct
Size: 12 x 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 431722
Weight: 2.40ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 25.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 705529
Weight: 2.36ct
Size: 9.4 x 6.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 2.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 483501
Weight: 1.42ct
Size: 6.7 x 6 mm
Clarity: VS
Content: 1 pc
Price: $ 110.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 711603
Weight: 1.13ct
Size: 7.2 x 6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 22.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 378207
Weight: 27.12ct
Size: 22.1 x 15.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 71.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 713715
Weight: 0.86ct
Size: 8 x 5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 7.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 711714
Weight: 32.38ct
Size: 25.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 86.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 499236
Weight: 1.80ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 32.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 598627
Weight: 1.71ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 33.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 376590
Weight: 2.63ct
Size: 8.8 x 7.8 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 20.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 685383
Weight: 19.09ct
Size: 29.8 x 12.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 519042
Weight: 2.20ct
Size: 9 x 7.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 48.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 457063
Weight: 6.31ct
Size: 14.9 x 8.7 mm
Clarity: VS
Content: 1 pc
Price: $ 33.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 497591
Weight: 43.74ct
Size: 33.6 x 23.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 57.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 668705
Weight: 26.11ct
Size: 26.3 x 12.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 563.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 499217
Weight: 2.36ct
Size: 11.6 x 5.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 467.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 462030
Weight: 3.88ct (total)
Size: 12.2 x 6.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 38.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 539803
Weight: 0.79ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 639861
Weight: 0.34ct
Size: 3.9 x 3.8 mm
Clarity: VS
Content: 1 pc
Price: $ 17.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 643808
Weight: 2.58ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 6.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 611865
Weight: 2.17ct (total)
Size: 7.1 x 6 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 51.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 445865
Weight: 4.21ct
Size: 12.1 x 9.6 mm
Clarity: VS
Content: 1 pc
Price: $ 30.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 689601
Weight: 1.74ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 52.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 567605
Weight: 3.66ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 427899
Weight: 2.38ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 15.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 722447
Weight: 7.16ct
Size: 17.5 x 11.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 60.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 418378
Weight: 5.51ct
Size: 13.4 x 8.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 29.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 718516
Weight: 45.10ct
Size: 41.1 x 26.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 270.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 554030
Weight: 17.58ct
Size: 15 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 21.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 686471
Weight: 0.62ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 14.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 394577
Weight: 6.08ct (total)
Size: 9 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 33.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 322574
Weight: 23.57ct
Size: 20.4 x 19.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 62.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 431675
Weight: 1.55ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 36.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 730437
Weight: 1.39ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 233.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 360631
Weight: 8.06ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 42.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 715759
Weight: 22.10ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 212.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 542607
Weight: 0.70ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 31.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 686105
Weight: 1.45ct
Size: 8.3 x 6.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 1.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 450015
Weight: 28.33ct (total)
Size: 21.5 x 15.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 74.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 513485
Weight: 4.27ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 45.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 699166
Weight: 3.45ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 28.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 460832
Weight: 2.76ct
Size: 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 25.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 722996
Weight: 1.29ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 38.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 736568
Weight: 13.59ct
Size: 17 x 17 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 19.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 727283
Weight: 0.97ct
Size: 11.1 x 3.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 58.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 290343
Weight: 1.54ct
Size: 7.9 x 7.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 17.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 645825
Weight: 6.52ct
Size: 23.2 x 9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 20.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 723836
Weight: 1.72ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.51
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
351
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 -> 9 star ratings

I am very pleased with the ways you can filter your searches on this site, finding exactly what I want with little knowledge of what I am looking for is surprisingly easy!

Posted By Leo in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 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 -> 10 star ratings

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 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 -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky 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 -> 9 star ratings

I am very pleased with the ways you can filter your searches on this site, finding exactly what I want with little knowledge of what I am looking for is surprisingly easy!

Posted By Leo in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 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 -> 10 star ratings

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 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 -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Its been a long time since Ive made any purchases Im satisfied with the quality.

Posted By Hard Case in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Nice website I just don't know much about the quality until I receive the stone.

Posted By Becky 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