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: 744036
Weight: 1.74ct
Size: 9.1 x 5.1 mm
Clarity: VS
Content: 1 pc
Price: $ 469.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 394922
Weight: 3.71ct
Size: 9.5 x 9.4 mm
Clarity: VS
Content: 1 pc
Price: $ 24.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 712054
Weight: 56.79ct (total)
Size: 25.2 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 151.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 707845
Weight: 3.59ct
Size: 12.5 x 8.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 25.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 605445
Weight: 24.61ct (total)
Size: 16 x 16 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 38.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 497665
Weight: 2.70ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 24.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 693477
Weight: 8.78ct
Size: 14.8 x 11.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 31.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 710446
Weight: 1.20ct
Size: 6.6 x 5.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 21.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 619777
Weight: 26.05ct (total)
Size: 25 x 18 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 68.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 745190
Weight: 55.45ct
Size: 23.9 x 16.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 117.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 573254
Weight: 5.71ct
Size: 12.5 x 11.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 45.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 720044
Weight: 6.49ct
Size: 14 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 194.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 460461
Weight: 3.02ct
Size: 8 x 8 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 5,580.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 522416
Weight: 9.88ct
Size: 16 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 78.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 744019
Weight: 20.25ct
Size: 21.2 x 16.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 1,215.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 648387
Weight: 5.46ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 9.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 626296
Weight: 8.69ct
Size: 20 x 12.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 80.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 462000
Weight: 3.96ct (total)
Size: 12.1 x 6 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 47.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 194570
Weight: 35.14ct
Size: 27.1 x 18.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 46.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 693024
Weight: 27.79ct
Size: 36.1 x 9.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 509898
Weight: 0.92ct
Size: 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 36.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 635573
Weight: 1.16ct
Size: 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 30.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 599291
Weight: 6.60ct
Size: 14.3 x 10 mm
Clarity: Transparent
Content: 1 pc
Price: $ 31.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 691217
Weight: 0.62ct
Size: 5 x 4.3 mm
Clarity: VS
Content: 1 pc
Price: $ 52.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 460715
Weight: 5.42ct
Size: 12 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 50.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 546659
Weight: 2.01ct
Size: 8 x 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 15.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 743184
Weight: 1.06ct
Size: 6.6 x 4.9 mm
Clarity: VS
Content: 1 pc
Price: $ 127.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 431208
Weight: 3.35ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 79.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 731030
Weight: 12.88ct (total)
Size: 19.8 x 12.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 8.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 518304
Weight: 22.63ct
Size: 17.1 x 13.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 588571
Weight: 6.51ct
Size: 15.2 x 11.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 532588
Weight: 4.78ct
Size: 15 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 715554
Weight: 5.59ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 53.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 737184
Weight: 31.09ct
Size: 30.5 x 12.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 3.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 392341
Weight: 6.76ct
Size: 11.6 x 11.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 44.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 719970
Weight: 0.72ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 6.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 431824
Weight: 2.71ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 28.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 451213
Weight: 1.48ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 13.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 648256
Weight: 15.06ct
Size: 20.8 x 15.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 525626
Weight: 1.33ct
Size: 6.9 x 6.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 204.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 394470
Weight: 4.40ct (total)
Size: 8.5 x 8.5 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 29.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 668713
Weight: 10.03ct
Size: 23.9 x 9.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 216.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 689006
Weight: 4.01ct (total)
Size: 10.1 x 8.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 22.09
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: 675714
Weight: 4.67ct (total)
Size: 12.4 x 7.6 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 13.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 730227
Weight: 2.52ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 22.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 693807
Weight: 5.64ct
Size: 13.7 x 8.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 187.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 701021
Weight: 0.75ct
Size: 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 45.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 727476
Weight: 0.90ct
Size: 6 x 4.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 16.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 392235
Weight: 7.57ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 49.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 401449
Weight: 33.40ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 60.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 485295
Weight: 4.30ct (total)
Size: 7.7 x 7.4 mm
Clarity: Translucent
Content: 4 pcs
Price: $ 22.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 734793
Weight: 4.26ct
Size: 10.7 x 8.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 178.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 689600
Weight: 2.45ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 73.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 722154
Weight: 9.12ct
Size: 18.6 x 11 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 717191
Weight: 1.41ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 28.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 732487
Weight: 0.50ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 4.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 479443
Weight: 4.89ct (total)
Size: 9.9 x 5 mm
Clarity: VVS-VS
Content: 4 pcs
Price: $ 51.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 476429
Weight: 7.28ct
Size: 16 x 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 67.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 491571
Weight: 80.74ct (total)
Size: 21.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 94.86
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
565
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

Site is easy to navigate and the variety is great and how often new products are added is also great.

Posted By Jhidron in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.

Posted By Sal in July, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

Good prices

Posted By TRM in October, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

Posted By Salvo in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

IT WAS GREAT SIMPLE I WAS ABLE TO MAKE AN ACCOUNT EASY AND WAS ABLE TO FAVORITE ALL OF MY FINAL SELECTED GEMS, I JUST LOVE IT.

Posted By YE in October, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Enjoyed shopping.

Posted By Chris in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well

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