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: 728171
Weight: 0.05ct
Size: 2.3 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 20.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 693450
Weight: 23.22ct
Size: 35.7 x 9.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 628148
Weight: 3.03ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 72.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 435336
Weight: 2.35ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 725006
Weight: 5.84ct
Size: 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 6.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 718455
Weight: 0.08ct (total)
Size: 2 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 76.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 704925
Weight: 1.50ct
Size: 10.4 x 7.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 45.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 451142
Weight: 1.64ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 15.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 450795
Weight: 4.86ct
Size: 12.7 x 10.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 44.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 372506
Weight: 2.85ct
Size: 8.1 x 7.2 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 18.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 674841
Weight: 8.95ct
Size: 28.5 x 12.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 546205
Weight: 1.29ct
Size: 6.6 x 5.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 115.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 659263
Weight: 2.08ct (total)
Size: 9 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 4.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 685706
Weight: 1.65ct
Size: 8 x 6.6 mm
Clarity: VS
Content: 1 pc
Price: $ 30.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 651055
Weight: 1.57ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 714997
Weight: 1.37ct (total)
Size: 5 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 3.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 416385
Weight: 1.20ct
Size: 15.3 x 3.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 544835
Weight: 1.52ct
Size: 8.5 x 8.4 mm
Clarity: VVS-VS
Price: $ 11.34
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 498869
Weight: 1.84ct
Size: 10 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 14.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 357695
Weight: 3.93ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 10 pcs
Price: $ 25.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 575168
Weight: 11.89ct
Size: 29.6 x 9.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 42.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 718604
Weight: 33.35ct
Size: 46.8 x 19.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 200.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 370760
Weight: 23.48ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 31.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 674166
Weight: 11.85ct
Size: 19.8 x 10.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 213.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 636645
Weight: 1.41ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 31.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 586312
Weight: 23.52ct (total)
Size: 24.2 x 12.5 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 65.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 683152
Weight: 3.95ct
Size: 12.5 x 9.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 709367
Weight: 2.31ct
Size: 14 x 7.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 19.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 667942
Weight: 27.91ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 100.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 376592
Weight: 2.25ct
Size: 9 x 7.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 17.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 567448
Weight: 0.15ct (total)
Size: 2.8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 323.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 700172
Weight: 0.64ct
Size: 4.8 mm
Clarity: SI
Content: 1 pc
Price: $ 38.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 418348
Weight: 11.75ct
Size: 16.8 x 12.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 23.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 464337
Weight: 2.96ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 39.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 691685
Weight: 1.35ct
Size: 11.5 x 6.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 72.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 642913
Weight: 2.28ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 20.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 465364
Weight: 3.46ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 30.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 718477
Weight: 33.21ct
Size: 34.7 x 23.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 119.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 486220
Weight: 7.05ct
Size: 14.5 x 10.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 59.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 688884
Weight: 1.04ct
Size: 9.2 x 5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 9.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 712658
Weight: 2.18ct
Size: 10 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 484844
Weight: 30.43ct
Size: 38.8 x 15.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 30.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 743050
Weight: 1.30ct
Size: 7.3 x 5.9 mm
Clarity: VS
Content: 1 pc
Price: $ 54.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 649910
Weight: 0.79ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 6.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 360791
Weight: 10.12ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 21.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 501806
Weight: 1.78ct
Size: 10 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 14.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 674111
Weight: 2.94ct
Size: 12 x 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 45.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 720851
Weight: 1.51ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 12.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 479551
Weight: 2.32ct (total)
Size: 10.1 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 24.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 686487
Weight: 2.90ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 3.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 688427
Weight: 1.05ct
Size: 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 3.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 370700
Weight: 13.33ct
Size: 12.5 x 10.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 520660
Weight: 1.29ct
Size: 9.7 x 4.9 mm
Clarity: VS
Content: 1 pc
Price: $ 71.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 385158
Weight: 7.88ct
Size: 21.3 x 11.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 70.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 692514
Weight: 22.70ct
Size: 20 x 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 190.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 711076
Weight: 1.63ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 32.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 647254
Weight: 19.10ct
Size: 16.9 x 14.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 45.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 460345
Weight: 3.92ct
Size: 13 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 36.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 689155
Weight: 4.41ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 24.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 740687
Weight: 0.06ct
Size: 4 x 1.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 251.25
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
637
Choose Page
1 - 774

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 searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.

Posted By Tim in March, 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

I've made several purchases through GemSelect in the past, although not within the last six months. Their gems are always beautiful and I have never had an issue with their prices or their stones. Even when I'm not buying, I love scrolling through their website, which is very user friendly. I especially appreciate being able to change the listing order to your own liking, such as most to least expensive, largest to smallest, etc. As with most online orders, however, I think the shipping charges are not commensurate with the actual weight of the items shipped.

Posted By DrLHS in November, 2024
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

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very food

Posted By Keeto in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 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
Enlarged Gemstone Image