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
ID: 364002
Weight: 18.80ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 37.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 609393
Weight: 5.03ct
Size: 11.5 x 9.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 51.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 625166
Weight: 1.14ct
Size: 8.2 x 6.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 30.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 561751
Weight: 4.31ct
Size: 12 x 10 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 227.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 712347
Weight: 3.49ct
Size: 12 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 9.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 648938
Weight: 7.15ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 18.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 518174
Weight: 5.79ct
Size: 17.3 x 11.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 22.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 736508
Weight: 13.08ct
Size: 20.6 x 15.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 393592
Weight: 5.75ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 37.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 660571
Weight: 1.79ct
Size: 7 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 450561
Weight: 4.73ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 43.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 494327
Weight: 3.65ct (total)
Size: 10 x 7 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 13.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 561924
Weight: 0.80ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 6.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 474092
Weight: 4.89ct
Size: 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 45.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 597760
Weight: 8.04ct
Size: 19.7 x 11.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 106.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 460360
Weight: 3.40ct
Size: 11.2 x 8.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 37.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 647349
Weight: 0.89ct
Size: 8 x 6 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 32.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 730482
Weight: 2.69ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 548168
Weight: 1.90ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 38.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 414902
Weight: 6.62ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 43.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 357810
Weight: 3.91ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 10 pcs
Price: $ 25.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 572783
Weight: 0.98ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 38.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 734755
Weight: 5.46ct
Size: 12.4 x 10.7 mm
Clarity: VS
Content: 1 pc
Price: $ 229.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 334758
Weight: 8.89ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 58.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 662867
Weight: 6.08ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 145.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 648322
Weight: 3.74ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 31.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 551168
Weight: 2.50ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 23.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 428651
Weight: 4.99ct
Size: 12.7 x 12.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 39.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 744232
Weight: 4.87ct
Size: 13.4 x 11.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 518305
Weight: 33.91ct
Size: 21.5 x 13.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 39.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 742954
Weight: 45.08ct
Size: 36.5 x 25.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 45.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 658606
Weight: 25.96ct
Size: 18.3 x 18 mm
Clarity: Opaque
Content: 1 pc
Price: $ 38.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 388353
Weight: 4.66ct (total)
Size: 4.6 x 4.6 mm
Clarity: VVS-VS
Content: 10 pcs
Price: $ 30.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 706822
Weight: 1.45ct
Size: 10 x 5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 3.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 546640
Weight: 3.07ct
Size: 11 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 697231
Weight: 35.24ct
Size: 36.8 x 11 mm
Clarity: Opaque
Content: 1 pc
Price: $ 4.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 522429
Weight: 24.26ct
Size: 28.3 x 17.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 111.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 479512
Weight: 14.13ct (total)
Size: 17.5 x 11.8 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 25.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 737612
Weight: 6.35ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 38.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 431074
Weight: 2.77ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 65.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 324254
Weight: 6.46ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 21.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 649037
Weight: 2.17ct
Size: 10 x 8.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 12.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 725717
Weight: 1.56ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 14.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 491705
Weight: 48.28ct (total)
Size: 18 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 56.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 718183
Weight: 1.03ct
Size: 6 x 5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 30.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 417583
Weight: 1.79ct (total)
Size: 4.5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 73.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 394380
Weight: 6.79ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 44.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 718269
Weight: 0.75ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 22.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 700572
Weight: 0.48ct
Size: 4.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 28.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 643481
Weight: 1.24ct
Size: 7.4 x 5.9 mm
Clarity: VS
Content: 1 pc
Price: $ 29.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 686091
Weight: 1.21ct (total)
Size: 6 x 4.2 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 26.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 347687
Weight: 3.08ct
Size: 25.7 x 3.8 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 166.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 660198
Weight: 14.11ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 16.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 721771
Weight: 0.65ct
Size: 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 31.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 710343
Weight: 2.60ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 430975
Weight: 8.83ct
Size: 15 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 22.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 732836
Weight: 0.44ct
Size: 6 x 4.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 18.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 624229
Weight: 1.01ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 73.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 610151
Weight: 15.28ct (total)
Size: 18.7 x 14.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 20.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 709208
Weight: 1.59ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 13.36
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
568
Choose Page
1 - 772

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

A pleasant experience and many choices to choose from

Posted By Krackenking in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Was a good experience.

Posted By Tim in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mmThanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Had a great experience and the prices are great

Posted By BuBx99 in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very large selection from affordable to high end I will be coming back to shop again!

Posted By GreenGator in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great selection of gems at a reasonable price

Posted By Curt in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate
Enlarged Gemstone Image