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: 700708
Weight: 0.47ct
Size: 4.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 28.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 497952
Weight: 23.96ct
Size: 19 x 14.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 494811
Weight: 6.76ct
Size: 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 724534
Weight: 0.80ct
Size: 10 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 24.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 611665
Weight: 1.55ct
Size: 6.7 x 6.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 691102
Weight: 1.54ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 83.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 463344
Weight: 3.81ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 27.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 255629
Weight: 0.73ct (total)
Size: 3.1 mm
Clarity: VS
Content: 5 pcs
Price: $ 157.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 715310
Weight: 0.92ct
Size: 7 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 441.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 692136
Weight: 0.31ct
Size: 4 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 18.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 390024
Weight: 2.30ct (total)
Size: 5.5 x 4.3 mm
Clarity: VS
Content: 4 pcs
Price: $ 105.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 456983
Weight: 11.68ct
Size: 18.8 x 10.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 61.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 437827
Weight: 1.65ct
Size: 17.3 x 3.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 54.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 648456
Weight: 23.66ct
Size: 27 x 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 604668
Weight: 3.16ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 91.76
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: 673511
Weight: 29.36ct
Size: 31.5 x 19.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 35.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 435576
Weight: 4.70ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 31.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 678065
Weight: 7.84ct
Size: 20 x 19.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 559498
Weight: 1.18ct
Size: 7.7 x 5.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 4.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 711000
Weight: 9.34ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 24.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 735123
Weight: 0.55ct
Size: 5.3 mm
Clarity: SI
Content: 1 pc
Price: $ 33.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 672040
Weight: 24.65ct
Size: 32.5 x 21.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 29.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 377567
Weight: 3.85ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 98.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 671647
Weight: 2.57ct
Size: 9 x 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 77.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 596471
Weight: 20.11ct
Size: 18.5 x 16.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 177.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 688641
Weight: 0.90ct
Size: 7.6 x 5.7 mm
Clarity: VS
Content: 1 pc
Price: $ 8.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 712200
Weight: 2.62ct
Size: 12 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 6.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 708276
Weight: 8.28ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 7.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 727099
Weight: 1.51ct
Size: 7.5 x 5.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 90.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 439652
Weight: 8.10ct
Size: 14 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 160.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 724837
Weight: 0.96ct
Size: 9.9 x 3.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 435490
Weight: 7.98ct
Size: 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 26.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 728201
Weight: 0.98ct
Size: 6.4 x 5.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 5.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 728011
Weight: 2.57ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 6.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 696214
Weight: 58.70ct
Size: 43.4 x 22.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 40.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 707917
Weight: 11.07ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 669578
Weight: 15.06ct
Size: 16.1 x 14.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 90.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 410274
Weight: 5.61ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 37.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 675952
Weight: 7.48ct
Size: 15.9 x 10.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 44.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 445939
Weight: 3.18ct
Size: 12 x 9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 23.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 529683
Weight: 13.62ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 44.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 682033
Weight: 1.01ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 18.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 702345
Weight: avg. 0.05 ct / each
Size: 2.1 mm (calibrated)
Clarity: Opaque
Price: $ 15.30
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 438491
Weight: 14.86ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 58.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 543733
Weight: 0.91ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 464283
Weight: 4.07ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 37.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 694547
Weight: 5.80ct
Size: 15.1 x 9.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 48.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 732497
Weight: 0.67ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 5.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 678001
Weight: 0.96ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 8.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 646969
Weight: 0.90ct
Size: 8 x 6 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 32.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 559396
Weight: 2.07ct
Size: 7 x 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 42.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 634787
Weight: avg. 0.17 ct / each
Size: 5 x 2.5 mm (calibrated)
Clarity: Transparent
Price: $ 1.22
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 503806
Weight: 6.60ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 694558
Weight: 36.40ct
Size: 33 x 23.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 39.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 679951
Weight: 54.55ct
Size: 30 x 22 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 523.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 456422
Weight: 2.60ct
Size: 11.5 x 8.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 713992
Weight: 0.93ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 7.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 724136
Weight: 8.98ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 8.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 499171
Weight: 2.14ct
Size: 12.4 x 4.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 423.72
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
212
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

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Im not a jeweler, I buy for my personal use. My dad was a jewelry maker and I love gemstones.

Posted By Andie in September, 2024
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

Everything was great, website user friendly, quality amazing, communication amazing, delivery amazing, everything was as expected, they done what they said they would, overall experience was amazing.

Posted By Jac 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

Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 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 purchased from here many times over the last decade+. I find the information easy to understand, helpful, and interesting. I have always been satisfied that I got exactly what I ordered. Pictures and descriptions are clear and unique to each stone.

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