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: 437374
Weight: 1.61ct
Size: 6.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 42.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 697468
Weight: 0.68ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Price: $ 4.08
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 687748
Weight: 8.25ct
Size: 14 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 9.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 479946
Weight: 4.23ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 450109
Weight: 2.37ct (total)
Size: 7 x 5.2 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 31.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 655769
Weight: 1.18ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 28.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 580870
Weight: 1.97ct
Size: 11.9 x 6 mm
Clarity: VVS
Content: 1 pc
Price: $ 18.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 656081
Weight: 1.15ct
Size: 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 27.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 730070
Weight: 4.88ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 43.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 363873
Weight: 13.47ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 74.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 646544
Weight: 0.56ct (total)
Size: 3.7 mm
Clarity: VS
Content: 2 pcs
Price: $ 14.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 686748
Weight: 0.52ct
Size: 4.6 x 4.2 mm
Clarity: VS
Content: 1 pc
Price: $ 43.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 554096
Weight: 1.03ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 20.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 732978
Weight: 0.79ct
Size: 5.9 x 4.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 18.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 409942
Weight: 5.65ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 37.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 699677
Weight: 24.75ct
Size: 24.2 x 20.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 20.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 464177
Weight: 3.84ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 35.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 481069
Weight: 74.88ct
Size: 40.1 x 24.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 98.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 706382
Weight: 8.93ct
Size: 13.6 x 11.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 701921
Weight: 16.28ct
Size: 18.8 x 11.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 97.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 434995
Weight: 33.08ct
Size: 26.1 x 18.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 43.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 635855
Weight: 1.41ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 25.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 461998
Weight: 3.31ct (total)
Size: 12.1 x 5.9 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 39.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 537123
Weight: 2.49ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 32.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 708175
Weight: 2.61ct (total)
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 53.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 403669
Weight: 24.15ct
Size: 23.9 x 18.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 168.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 569227
Weight: 2.07ct
Size: 8.3 x 6.5 mm
Clarity: VS
Content: 1 pc
Price: $ 41.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 712390
Weight: 19.21ct
Size: 18 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 161.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 608849
Weight: 67.92ct (total)
Size: 25.8 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 96.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 463335
Weight: 3.01ct (total)
Size: 12 x 6.2 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 39.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 435040
Weight: 65.45ct
Size: 36.1 x 29.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 129.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 400205
Weight: 6.35ct (total)
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 20.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 600287
Weight: 27.20ct
Size: 21.9 x 20.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 20.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 568971
Weight: 2.46ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 48.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 684600
Weight: 11.44ct
Size: 17.8 x 15 mm
Clarity: Transparent
Content: 1 pc
Price: $ 12.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 686311
Weight: 0.22ct
Size: 5 x 2.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 11.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 393664
Weight: 1.52ct (total)
Size: 2.9 x 1.5 mm
Clarity: VS
Content: 30 pcs
Price: $ 110.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 293253
Weight: 26.08ct
Size: 16 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 94.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 715351
Weight: 10.91ct
Size: 18 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 104.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 723263
Weight: 1.47ct
Size: 7.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 14.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 715539
Weight: 3.91ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 418429
Weight: 10.93ct
Size: 16.9 x 12.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 21.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 527284
Weight: 0.99ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 9.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 390748
Weight: 2.06ct (total)
Size: 5.2 x 4.2 mm
Clarity: VS
Content: 5 pcs
Price: $ 133.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 697777
Weight: 16.04ct
Size: 20.9 x 8.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 1.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 434041
Weight: 30.42ct
Size: 28.2 x 21.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 40.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 716367
Weight: 1.65ct
Size: 8.1 x 6.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 15.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 711978
Weight: 4.63ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 66.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 394825
Weight: 7.23ct
Size: 12 x 12 mm (calibrated)
Clarity: VS
Price: $ 47.72
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 712541
Weight: 3.72ct
Size: 12 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 9.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 326398
Weight: 6.48ct (total)
Size: 10.6 x 8.5 mm
Clarity: Transparent/Translucent
Content: 2 pcs
Price: $ 21.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 471353
Weight: 43.59ct
Size: 32.7 x 29.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 84.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 697883
Weight: 0.89ct
Size: 6.3 x 5.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 5.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 367856
Weight: 3.88ct (total)
Size: 7.5 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 25.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 675440
Weight: 6.82ct
Size: 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 16.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 541536
Weight: 3.54ct (total)
Size: 8.1 x 6.8 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 71.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 370464
Weight: 25.83ct (total)
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 51.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 718511
Weight: 23.45ct
Size: 21.7 x 17.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 140.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 693801
Weight: 3.68ct
Size: 8.7 x 7.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 122.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 504912
Weight: 7.87ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 51.95
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
453
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 am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience shopping and finding what I was looking for, the only improvement I could think of would be allowing to filter more than one size at a time.

Posted By Tlicious04 in September, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

great experience

Posted By T in December, 2024
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Had no difficulty with the website. The only difficulty I had today was making the choice of what I wanted to purchase. There are just so many delicious stones to choose from!!

Posted By Desertchick in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
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 am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great experience shopping and finding what I was looking for, the only improvement I could think of would be allowing to filter more than one size at a time.

Posted By Tlicious04 in September, 2024
Source: Bizrate

Overall Rating -> 8 star ratings

great experience

Posted By T in December, 2024
Source: Bizrate

Overall Rating -> 7 star ratings

Excited to see

Posted By Ss in December, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Had no difficulty with the website. The only difficulty I had today was making the choice of what I wanted to purchase. There are just so many delicious stones to choose from!!

Posted By Desertchick in July, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 2025
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