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: 705991
Weight: 0.76ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Price: $ 6.38
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 357721
Weight: 3.63ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 5 pcs
Price: $ 23.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 718604
Weight: 33.35ct
Size: 46.8 x 19.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 200.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 457006
Weight: 1.91ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 17.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 723228
Weight: 0.05ct (total)
Size: 1.8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 48.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 579560
Weight: 1.89ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 25.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 710079
Weight: 2.45ct
Size: 14.1 x 7.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 20.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 697851
Weight: 3.61ct (total)
Size: 7.7 x 6.5 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 21.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 481343
Weight: 39.20ct
Size: 33.6 x 24.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 38.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 725639
Weight: 0.39ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 3.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 383658
Weight: 1.87ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 104.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 631625
Weight: 0.96ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 718308
Weight: 0.02ct
Size: 2 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 19.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 518863
Weight: 22.16ct
Size: 40.3 x 12.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 40.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 737061
Weight: 33.42ct
Size: 32.5 x 19.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 31.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 460417
Weight: 3.58ct
Size: 11 x 8.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 39.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 509121
Weight: 30.50ct
Size: 21.1 x 16.2 mm
Clarity: IF
Content: 1 pc
Price: $ 281.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 446588
Weight: 4.11ct
Size: 12.3 x 8.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 13.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 573676
Weight: 5.46ct
Size: 16.9 x 9.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 43.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 606045
Weight: 19.11ct
Size: 19 x 15.5 mm
Clarity: VS
Content: 1 pc
Price: $ 176.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 528694
Weight: 1.27ct
Size: 8.7 x 4.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 92.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 563526
Weight: 1.64ct
Size: 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 36.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 568983
Weight: 0.84ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 7.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 567238
Weight: 2.65ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 59.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 394676
Weight: 13.13ct
Size: 15 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 52.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 605914
Weight: 17.76ct (total)
Size: 20.6 x 10.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 27.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 513229
Weight: 6.74ct
Size: 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 26.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 550368
Weight: 1.83ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 608862
Weight: 9.60ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 177.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 693089
Weight: 23.77ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 199.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 475531
Weight: 4.75ct
Size: 11 x 9.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 25.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 576033
Weight: 16.26ct (total)
Size: 20 x 13.8 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 45.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 656193
Weight: 1.45ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 34.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 451241
Weight: 1.52ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 14.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 365609
Weight: 13.09ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 25.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 681893
Weight: 5.79ct
Size: 13.3 x 10.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 34.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 514803
Weight: 2.08ct
Size: 8.4 x 6.8 mm
Clarity: VS
Content: 1 pc
Price: $ 35.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 713748
Weight: 0.73ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 12.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 338690
Weight: 1.72ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 94.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 437875
Weight: 1.36ct
Size: 20.6 x 2.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 44.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 397295
Weight: 6.17ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 40.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 682136
Weight: 0.61ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 10.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 409579
Weight: 12.30ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 58.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 395825
Weight: 2.34ct
Size: 8 x 8 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 61.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 493106
Weight: 4.52ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 32.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 586443
Weight: 1.28ct
Size: 7.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 84.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 515510
Weight: 12.25ct
Size: 17 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 17.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 417910
Weight: 12.31ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 29.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 547633
Weight: 1.32ct
Size: 6 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 26.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 697566
Weight: 0.54ct (total)
Size: 3.8 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 11.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 635651
Weight: 2.04ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 58.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 569237
Weight: 2.24ct
Size: 8.3 x 6.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 44.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 695360
Weight: 8.13ct
Size: 11 x 11 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 243.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 471041
Weight: 32.56ct
Size: 23.8 x 16.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 128.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 721393
Weight: 0.56ct
Size: 8 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 10.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 482094
Weight: 10.71ct
Size: 16 x 9.3 mm
Clarity: VS
Content: 1 pc
Price: $ 244.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 448968
Weight: 2.91ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 19.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 690753
Weight: 0.29ct
Size: 3.9 x 3.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 708223
Weight: 3.57ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 640455
Weight: 1.33ct
Size: 6.5 x 5.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 8.78
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
756
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 did not have any problems

Posted By Clilrichard in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love browsing the site and everything is easy to find. There is just so much I get lost for hours. Sometimes I wish there were videos of some gems, but other than that I love shopping with GemSelect and I have referred the site to many people many times. I work in the jewelry industry myself and I love to show off what Ive had made with my gems from GemSelect! Thank you

Posted By Antennaesglow in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
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

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

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 did not have any problems

Posted By Clilrichard in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love browsing the site and everything is easy to find. There is just so much I get lost for hours. Sometimes I wish there were videos of some gems, but other than that I love shopping with GemSelect and I have referred the site to many people many times. I work in the jewelry industry myself and I love to show off what Ive had made with my gems from GemSelect! Thank you

Posted By Antennaesglow in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Awesome

Posted By D in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

the gems were smaller than I thought but I was at fault for not reading the complete discrimination

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
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

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

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