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: 730079
Weight: 0.59ct
Size: 6.9 x 3.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 35.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 689341
Weight: 1.45ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 13.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 390597
Weight: 22.97ct (total)
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 36.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 647268
Weight: 1.74ct
Size: 7.9 x 6.6 mm
Clarity: VS
Content: 1 pc
Price: $ 39.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 608203
Weight: 2.22ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 73.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 631688
Weight: 0.83ct
Size: 7 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 24.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 538304
Weight: 0.93ct (total)
Size: 8.2 x 4.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 6.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 492601
Weight: 5.08ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 36.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 645936
Weight: 20.01ct
Size: 24.7 x 19.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 727298
Weight: 0.43ct
Size: 5 x 4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 18.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 587270
Weight: 1.28ct
Size: 7.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 107.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 488299
Weight: 38.03ct
Size: 33.6 x 20.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 28.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 339806
Weight: 1.56ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: Transparent
Content: 4 pcs
Price: $ 35.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 735125
Weight: 0.43ct
Size: 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 25.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 431285
Weight: 1.39ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 12.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 693507
Weight: 1.93ct
Size: 6.8 x 6.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 64.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 712413
Weight: 8.73ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 23.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 393377
Weight: 4.22ct
Size: 10 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 27.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 486847
Weight: 34.75ct
Size: 34.4 x 25.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 388676
Weight: 1.09ct
Size: 10.7 x 4.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 69.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 479012
Weight: 1.88ct (total)
Size: 10.1 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 19.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 559514
Weight: 2.34ct
Size: 8.7 x 6.6 mm
Clarity: SI
Content: 1 pc
Price: $ 48.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 479203
Weight: 2.10ct (total)
Size: 10.1 x 5 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 22.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 721803
Weight: 6.64ct
Size: 12.3 x 11 mm
Clarity: Opaque
Content: 1 pc
Price: $ 6.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 510888
Weight: avg. 4.54 ct / each
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Price: $ 29.94
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 594091
Weight: 1.22ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 24.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 657868
Weight: 0.89ct
Size: 6.4 x 4.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 4.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 386587
Weight: 6.61ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 36.36
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: 564200
Weight: 0.87ct
Size: 7.5 x 5.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 13.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 707210
Weight: 2.53ct
Size: 8 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 6.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 694432
Weight: 11.24ct (total)
Size: 15.2 x 9.1 mm
Clarity: VVS
Content: 2 pcs
Price: $ 94.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 511700
Weight: 0.86ct
Size: 5.6 x 5.4 mm
Clarity: VS
Content: 1 pc
Price: $ 51.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 624238
Weight: 1.79ct (total)
Size: 8 x 5.7 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 129.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 333713
Weight: 21.17ct
Size: 25.3 x 14.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 363.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 660627
Weight: 12.43ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 14.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 499433
Weight: 1.47ct
Size: 7.4 x 5.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 5.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 378631
Weight: 8.89ct (total)
Size: 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 35.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 491586
Weight: 19.31ct (total)
Size: 18.1 x 9.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 22.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 479633
Weight: 2.31ct (total)
Size: 10.1 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 24.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 404906
Weight: 6.80ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 44.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 454080
Weight: 0.76ct
Size: 5.3 x 5 mm
Clarity: VS
Content: 1 pc
Price: $ 32.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 482524
Weight: 25.67ct
Size: 29.8 x 20.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 636207
Weight: 1.97ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS
Price: $ 16.55
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 462438
Weight: 6.39ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 42.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 655865
Weight: 6.66ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 445942
Weight: 3.05ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 18.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 584142
Weight: 2.32ct
Size: 7 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 13.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 712241
Weight: 2.36ct
Size: 8.7 x 7.4 mm
Clarity: VS
Content: 1 pc
Price: $ 56.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 631627
Weight: 0.84ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 25.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 408100
Weight: 6.99ct
Size: 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 16.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 597440
Weight: 1.45ct
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 28.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 545055
Weight: 1.27ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: SI
Content: 2 pcs
Price: $ 33.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 726069
Weight: 0.34ct
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 3.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 690779
Weight: 0.92ct
Size: 5.5 mm (calibrated)
Clarity: I1
Content: 1 pc
Price: $ 55.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 478378
Weight: 0.82ct
Size: 8.4 x 4.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 34.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 693704
Weight: 24.98ct
Size: 29.8 x 10.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 711015
Weight: 0.93ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 18.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 712063
Weight: 1.18ct
Size: 6.5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 23.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 648636
Weight: 23.22ct
Size: 26.3 x 17.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.38
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
469
Choose Page
1 - 776

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

Great experience. I can't wait to explore on the website further.

Posted By Kymmie in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

selection was broad and the check out was quick. Great site

Posted By JC Karl in September, 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

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

Excellent selection and easy to use, well done site

Posted By Steph in December, 2024
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

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
Enlarged Gemstone Image