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: 623750
Weight: 4.21ct
Size: 10.8 x 9.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 71.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 560341
Weight: 4.57ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 42.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 482244
Weight: 1.85ct
Size: 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 13.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 662864
Weight: 2.88ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 69.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 685925
Weight: 27.94ct
Size: 28.8 x 20.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 12.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 688367
Weight: 0.26ct
Size: 5.7 x 2.9 mm
Clarity: VS
Content: 1 pc
Price: $ 12.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 687176
Weight: 1.71ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 305013
Weight: 0.67ct
Size: 5.8 x 5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 66.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 389899
Weight: 1.50ct
Size: 10 x 4.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 97.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 671488
Weight: 22.15ct
Size: 26.1 x 16.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 57.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 706892
Weight: 1.80ct
Size: 8 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 689926
Weight: 0.94ct
Size: 7 x 6.7 mm
Clarity: VVS
Price: $ 9.02
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 487772
Weight: 20.36ct
Size: 19.8 x 19.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 517451
Weight: 40.78ct
Size: 21.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 476854
Weight: 27.95ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 110.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 712907
Weight: 1.94ct
Size: 8.4 x 6.8 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 46.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 450931
Weight: 2.46ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 22.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 645229
Weight: 4.24ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 24.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 514127
Weight: 7.60ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 71.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 401045
Weight: 5.78ct
Size: 11 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 19.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 456832
Weight: 4.23ct
Size: 12.8 x 7.7 mm
Clarity: VS
Content: 1 pc
Price: $ 22.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 706374
Weight: 14.76ct
Size: 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 30.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 480717
Weight: 2.01ct (total)
Size: 5.5 x 3.7 mm
Clarity: VS
Content: 4 pcs
Price: $ 18.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 487914
Weight: 31.27ct
Size: 24.2 x 21 mm
Clarity: Opaque
Content: 1 pc
Price: $ 23.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 724922
Weight: 0.43ct
Size: 6.1 x 3 mm
Clarity: VVS
Content: 1 pc
Price: $ 18.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 479107
Weight: 2.29ct (total)
Size: 10 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 24.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 693742
Weight: 0.58ct
Size: 6.2 x 4.9 mm
Clarity: VS
Content: 1 pc
Price: $ 34.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 480767
Weight: 2.93ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 5 pcs
Price: $ 27.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 322582
Weight: 1.64ct
Size: 7.4 x 7 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 9.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 660326
Weight: 3.18ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 7.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 694373
Weight: 22.37ct
Size: 18 x 18 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 187.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 411376
Weight: 3.44ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 102.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 515435
Weight: 31.70ct
Size: 35.1 x 22 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 736126
Weight: 10.51ct
Size: 20 x 16.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 259.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 624991
Weight: 2.72ct
Size: 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 570188
Weight: 2.00ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 47.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 737823
Weight: 6.07ct (total)
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 182.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 665043
Weight: 9.17ct
Size: 15.4 x 12.7 mm
Clarity: VS
Content: 1 pc
Price: $ 77.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 606870
Weight: 1.80ct (total)
Size: 8.8 x 5 mm
Clarity: VS
Content: 2 pcs
Price: $ 11.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 501565
Weight: 1.89ct
Size: 13.1 x 4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 62.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 722782
Weight: 0.61ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 18.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 498109
Weight: 18.28ct (total)
Size: 24.3 x 14 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 25.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 445982
Weight: 6.40ct
Size: 14.7 x 11.2 mm
Clarity: VS
Content: 1 pc
Price: $ 46.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 348977
Weight: 2.20ct
Size: 17.6 x 4.7 mm
Clarity: VS
Content: 1 pc
Price: $ 72.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 724805
Weight: 1.28ct
Size: 15.2 x 3.2 mm
Clarity: VS
Content: 1 pc
Price: $ 53.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 604666
Weight: 3.22ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 85.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 600413
Weight: 2.49ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 23.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 398801
Weight: 3.24ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 29.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 453501
Weight: 21.76ct
Size: 18.2 x 14.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 42.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 532418
Weight: 5.68ct
Size: 15 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 44.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 673899
Weight: 16.54ct
Size: 23.5 x 13.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 248.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 448268
Weight: 3.91ct (total)
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 20.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 721618
Weight: 13.11ct
Size: 20.6 x 13.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 47.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 416691
Weight: 8.12ct
Size: 14 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 367300
Weight: 1.12ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 49.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 678340
Weight: 2.73ct
Size: 8 x 7.5 mm
Clarity: VS
Content: 1 pc
Price: $ 98.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 727859
Weight: 2.88ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 6.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 701751
Weight: 9.26ct
Size: 15.1 x 9.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 55.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 616875
Weight: 0.77ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 55.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 669081
Weight: 10.76ct
Size: 15 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 232.42
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
771
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

Good. I ts very user friendly.

Posted By Shalini in June, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Filters need to be improved but rest of website is great

Posted By Rock hound in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Appreciated the selection. Jadeite is hard to find under $100. Website has alot of variety.

Posted By Jess in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!

Posted By Orphanboy in December, 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

Overall Rating -> 10 star ratings

easy site to navigate

Posted By Curt's Cabochons in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

Posted By VH-1 in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am filling a small treasure chest and picked a nice amethyst.

Posted By VinnyD in August, 2025
Source: Bizrate
Enlarged Gemstone Image