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: 718628
Weight: 6.74ct
Size: 12 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 30.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 547258
Weight: 3.03ct
Size: 9 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 20.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 572307
Weight: 2.19ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 173.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 689082
Weight: 1.58ct (total)
Size: 9.2 x 5.1 mm
Clarity: VS
Content: 2 pcs
Price: $ 15.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 712388
Weight: 17.70ct
Size: 21.2 x 16.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 148.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 486987
Weight: 22.52ct
Size: 24.9 x 16.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 14.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 728012
Weight: 2.35ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 5.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 680966
Weight: 1.07ct
Size: 7 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 32.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 457146
Weight: 1.63ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 15.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 310285
Weight: 1.14ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 60.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 672585
Weight: 1.34ct
Size: 8.7 x 6.7 mm
Clarity: VS
Content: 1 pc
Price: $ 32.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 558048
Weight: 1.01ct (total)
Size: 4.2 x 4.1 mm
Clarity: VS
Content: 2 pcs
Price: $ 8.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 545067
Weight: 0.73ct (total)
Size: 5.1 x 3.3 mm
Clarity: SI-I1
Content: 2 pcs
Price: $ 19.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 445833
Weight: 2.55ct
Size: 8.5 x 6.6 mm
Clarity: VS
Content: 1 pc
Price: $ 121.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 492799
Weight: 5.25ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 445135
Weight: 10.91ct
Size: 14 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 361.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 442856
Weight: 3.60ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 9.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 718833
Weight: 3.99ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 119.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 483565
Weight: 1.11ct
Size: 6.3 x 6.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 87.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 520281
Weight: 5.08ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 46.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 672186
Weight: 1.01ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 691101
Weight: 66.96ct
Size: 25.6 x 20.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 83.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 568984
Weight: 0.93ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 8.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 400814
Weight: 3.33ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 10.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 390812
Weight: 1.75ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 113.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 732983
Weight: 0.84ct
Size: 6.4 x 4.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 20.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 523839
Weight: 12.68ct
Size: 23.3 x 13.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 100.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 552384
Weight: 0.95ct (total)
Size: 8 x 4.1 mm
Clarity: VS
Content: 2 pcs
Price: $ 6.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 704591
Weight: 1.92ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 57.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 566569
Weight: 1.10ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 7.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 716412
Weight: 3.14ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 30.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 465763
Weight: 4.18ct (total)
Size: 11.9 x 6.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 44.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 521235
Weight: 20.07ct
Size: 31.5 x 8.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 14.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 727236
Weight: 0.70ct
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 12.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 344690
Weight: 91.73ct
Size: 36.1 x 26.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 181.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 722722
Weight: 23.70ct
Size: 25.3 x 15.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 199.08
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: 547267
Weight: 1.62ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 10.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 350554
Weight: 0.81ct
Size: 10.9 x 4.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 80.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 686128
Weight: 5.66ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 6.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 676003
Weight: 6.76ct
Size: 13 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 40.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 726036
Weight: 2.43ct (total)
Size: 6.9 x 6 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 96.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 493528
Weight: 3.94ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: Translucent
Content: 5 pcs
Price: $ 36.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 728367
Weight: 47.65ct
Size: 41.9 x 24 mm
Clarity: Opaque
Content: 1 pc
Price: $ 97.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 735221
Weight: 2.08ct
Size: 8.1 x 6.3 mm
Clarity: VS
Content: 1 pc
Price: $ 99.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 408233
Weight: 4.31ct
Size: 12.6 x 8.6 mm
Clarity: VS
Content: 1 pc
Price: $ 170.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 728059
Weight: 1.81ct
Size: 7.4 x 6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 548056
Weight: 6.32ct
Size: 12.9 x 9.8 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 250.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 693090
Weight: 26.02ct
Size: 20 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 218.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 529130
Weight: 20.00ct
Size: 33.6 x 8.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 13.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 475299
Weight: 4.14ct
Size: 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 38.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 446715
Weight: 3.06ct
Size: 12 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 10.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 727195
Weight: 0.66ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 11.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 687145
Weight: 9.92ct (total)
Size: 10 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 29.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 688128
Weight: 9.84ct
Size: 21.1 x 11.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 29.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 692516
Weight: 22.21ct
Size: 20 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 186.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 538351
Weight: 1.86ct
Size: 11.3 x 4.9 mm
Clarity: VS
Content: 1 pc
Price: $ 169.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 679210
Weight: 2.93ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 709954
Weight: 7.37ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 61.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 458257
Weight: 1.73ct (total)
Size: 4.3 x 3.5 mm
Clarity: VS
Content: 6 pcs
Price: $ 228.36
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
752
Choose Page
1 - 773

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

this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.

Posted By Tommyp in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have been buying gems for several years off and on and love their selection and great low prices. I started out wanting to get an example of each type of gem but after looking at all the types of gems and reading about them I realize it is almost impossible for me to do. It took me years just to read about them all. Gem Select is the best gem site you can find. For information or to buy. Steve M.

Posted By Stevee M. in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

My whole experience is great.

Posted By Ghs in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 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

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones. .

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 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

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

Posted By SLIntuitive Donna in July, 2025
Source: Bizrate
Enlarged Gemstone Image