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: 426022
Weight: 2.20ct
Size: 8.5 x 7.6 mm
Clarity: VS
Content: 1 pc
Price: $ 100.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 694213
Weight: 1.00ct
Size: 9.9 x 4.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 30.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 491144
Weight: 16.14ct (total)
Size: 9 mm (calibrated)
Clarity: Opaque
Content: 5 pcs
Price: $ 12.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 700072
Weight: 29.80ct
Size: 30.5 x 20.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 25.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 728184
Weight: 2.77ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 6.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 598299
Weight: 0.96ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 63.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 572305
Weight: 2.20ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 174.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 643774
Weight: 1.36ct
Size: 9 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 11.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 479950
Weight: 5.07ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 46.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 715014
Weight: 12.21ct (total)
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 31.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 699105
Weight: 2.44ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 20.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 682344
Weight: 12.85ct
Size: 22.6 x 10 mm
Clarity: Transparent
Content: 1 pc
Price: $ 123.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 552987
Weight: 1.17ct
Size: 8 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 26.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 690611
Weight: 54.82ct
Size: 39.6 x 31.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 65.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 547775
Weight: 1.80ct
Size: 7 x 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 36.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 674888
Weight: 10.16ct
Size: 16.7 x 14.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 598292
Weight: 1.08ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 71.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 609095
Weight: 2.04ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 67.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 730063
Weight: 5.18ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 46.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 684616
Weight: 15.12ct
Size: 16 x 16 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 64.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 693232
Weight: 19.33ct
Size: 18.3 x 14.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 162.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 719572
Weight: 0.62ct
Size: 5 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 11.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 648940
Weight: 8.78ct
Size: 13.5 x 11.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 481847
Weight: 60.25ct
Size: 49.4 x 18.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 60.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 482561
Weight: 3.47ct (total)
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 20 pcs
Price: $ 229.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 686703
Weight: 2.87ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 3.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 723774
Weight: 1.63ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 479013
Weight: 2.49ct (total)
Size: 10.1 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 26.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 709842
Weight: 1.43ct (total)
Size: 10 x 4.1 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 12.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 723376
Weight: 1.90ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 18.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 713700
Weight: 15.96ct
Size: 18 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 134.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 719364
Weight: 0.78ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 6.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 478410
Weight: 1.29ct
Size: 12.1 x 6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 59.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 514932
Weight: 8.91ct
Size: 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 366493
Weight: 1.13ct
Size: 6.9 x 5.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 158.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 496502
Weight: 2.25ct
Size: 9 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 46.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 681887
Weight: 10.65ct
Size: 15.1 x 12.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 63.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 689679
Weight: 1.60ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 15.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 395242
Weight: 3.29ct
Size: 9.6 x 9.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 21.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 585529
Weight: 35.75ct
Size: 35.2 x 28.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 20.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 499243
Weight: 1.88ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 33.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 677818
Weight: 0.18ct (total)
Size: 2.2 x 2.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 108.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 555628
Weight: 1.04ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 39.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 480102
Weight: 6.74ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Translucent
Content: 10 pcs
Price: $ 14.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 685179
Weight: 28.73ct
Size: 28.3 x 19 mm
Clarity: Transparent
Content: 1 pc
Price: $ 36.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 445851
Weight: 4.81ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 12.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 716363
Weight: 2.79ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 705510
Weight: 2.90ct
Size: 9 x 7 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 692523
Weight: 18.72ct
Size: 18.3 x 14.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 157.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 553505
Weight: 2.21ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 49.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 710402
Weight: 0.96ct
Size: 5.3 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 17.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 346907
Weight: 1.72ct
Size: 18.4 x 3.4 mm
Clarity: VVS
Content: 1 pc
Price: $ 49.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 384556
Weight: 14.69ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 58.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 674919
Weight: 19.38ct
Size: 24 x 21.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 17.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 506159
Weight: 2.14ct
Size: 12 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 53.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 619787
Weight: 2.04ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 61.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 735031
Weight: 0.12ct
Size: 4.2 x 2.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 100.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 701030
Weight: 28.37ct
Size: 33.4 x 19.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 437870
Weight: 2.38ct
Size: 8.5 x 6.9 mm
Clarity: VS
Content: 1 pc
Price: $ 109.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 443266
Weight: 4.61ct
Size: 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 15.16
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
730
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 always enjoy the selection and the unique cuts I can find here. I would love to see more hex cuts tho! Maybe some rose cuts too!

Posted By Blkfower83 in October, 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 -> 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 -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

The website was nice and I bought some gems

Posted By Jay in December, 2024
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

I have bought many stones from GemsSelect and have been very satisfied with all!I will continue to buy and recommend this site!

Posted By DG in July, 2024
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

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

Posted By Hard Case 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

I always enjoy the selection and the unique cuts I can find here. I would love to see more hex cuts tho! Maybe some rose cuts too!

Posted By Blkfower83 in October, 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 -> 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 -> 10 star ratings

So far, my experience was great...Thanks

Posted By Kaydi in May, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

The website was nice and I bought some gems

Posted By Jay in December, 2024
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

I have bought many stones from GemsSelect and have been very satisfied with all!I will continue to buy and recommend this site!

Posted By DG in July, 2024
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

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

Posted By Hard Case 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