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

Loose Untreated Gemstones: Certified Natural Gems for Collectors and Jewelry, Wholesale Untreated Stones

Discover loose untreated gemstones in our curated selection. Find unheated sapphires, untreated rubies, and virgin untreated stones, our collection highlights the beauty of nature’s finest treasures. Perfect for engagement rings, heirloom pieces, or collectors, our certified untreated gems and GIA-certified natural gems ensure authenticity and quality. Experience the allure of authentic untreated crystals and precious untreated gemstones today.

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: 528920
Weight: 22.77ct
Size: 33.4 x 9.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 12.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 701059
Weight: 5.14ct
Size: 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 4.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 384723
Weight: 13.22ct
Size: 23.9 x 15.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 119.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 635842
Weight: 9.88ct
Size: 18.1 x 10 mm
Clarity: Opaque
Content: 1 pc
Price: $ 28.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 407378
Weight: 8.59ct
Size: 14 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 226.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 390039
Weight: 1.35ct
Size: 10.5 x 3.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 87.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 674295
Weight: 9.45ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 124.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 407300
Weight: 8.82ct
Size: 14.1 x 13.2 mm
Clarity: VS
Content: 1 pc
Price: $ 402.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 696110
Weight: 24.51ct
Size: 33.4 x 19.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 14.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 431529
Weight: 2.44ct
Size: 7.7 x 7.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 48.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 525630
Weight: 1.66ct
Size: 7.8 x 6.4 mm
Clarity: VS
Content: 1 pc
Price: $ 255.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 298860
Weight: 9.30ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 57.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 360548
Weight: 7.56ct
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 369307
Weight: 1.58ct
Size: 10.6 x 5.8 mm
Clarity: VS
Content: 1 pc
Price: $ 175.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 366492
Weight: 1.31ct
Size: 9 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 183.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 472004
Weight: 7.18ct
Size: 14 x 11.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 1,895.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 392385
Weight: 8.20ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 54.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 562611
Weight: 14.93ct
Size: 16 x 10.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 39.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 675355
Weight: 169.73ct
Size: 37.3 x 30.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 4,169.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 354763
Weight: 382.95ct
Size: 44.4 x 42.5 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 765.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 392984
Weight: 3.50ct (total)
Size: 6.7 x 6.6 mm
Clarity: VS
Content: 2 pcs
Price: $ 92.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 693806
Weight: 23.10ct
Size: 22.5 x 10.8 mm
Clarity: VS
Content: 1 pc
Price: $ 765.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 406666
Weight: 14.70ct
Size: 21.3 x 16 mm
Clarity: Transparent
Content: 1 pc
Price: $ 60.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 637207
Weight: 8.44ct
Size: 21.5 x 12.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 40.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 663993
Weight: 8.43ct
Size: 13 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 40.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 476855
Weight: 30.31ct
Size: 17 x 14.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 120.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 562674
Weight: 3.05ct
Size: 13 x 6.9 mm
Clarity: SI
Content: 1 pc
Price: $ 161.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 635341
Weight: 25.30ct
Size: 29.7 x 13.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 212.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 490136
Weight: 1.46ct
Size: 6.8 x 6.4 mm
Clarity: VS
Content: 1 pc
Price: $ 129.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 514175
Weight: 16.64ct (total)
Size: 14.3 x 11 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 36.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 671487
Weight: 45.87ct
Size: 31.9 x 22 mm
Clarity: Translucent
Content: 1 pc
Price: $ 118.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 411623
Weight: 3.06ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 141.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 694259
Weight: 24.49ct
Size: 21 x 20.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 73.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 448563
Weight: 1.13ct
Size: 7.9 x 5.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 544.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 483947
Weight: 24.56ct
Size: 20 mm (calibrated)
Clarity: Opaque
Price: $ 29.99
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 355080
Weight: 34.92ct
Size: 23.7 x 17.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 92.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 696778
Weight: 7.99ct
Size: 18.2 x 7.7 mm
Clarity: SI
Content: 1 pc
Price: $ 639.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 504774
Weight: 0.74ct
Size: 5.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 44.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 594600
Weight: 31.86ct
Size: 25 x 18 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 210.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 424330
Weight: 5.48ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 171.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 512017
Weight: 21.49ct
Size: 26.8 x 15.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 28.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 532239
Weight: 7.57ct
Size: 12.9 x 10.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 54.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 351543
Weight: 28.16ct
Size: 29 x 19.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 123.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 384795
Weight: 10.67ct
Size: 28.1 x 13.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 96.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 573438
Weight: 0.84ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 33.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 686075
Weight: 0.22ct (total)
Size: 2.6 x 2.5 mm
Clarity: VS
Content: 2 pcs
Price: $ 10.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 588905
Weight: 18.47ct
Size: 20.9 x 15 mm
Clarity: VS
Content: 1 pc
Price: $ 121.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 553148
Weight: 2.48ct
Size: 7 x 7 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 56.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 407383
Weight: 11.87ct
Size: 18.8 x 12.8 mm
Clarity: VS
Content: 1 pc
Price: $ 391.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 485314
Weight: 6.68ct
Size: 14 x 14 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 35.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 555321
Weight: 26.57ct
Size: 18 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 32.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 415688
Weight: 1.17ct
Size: 8.5 x 5.3 mm
Clarity: VS
Content: 1 pc
Price: $ 1,034.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 575960
Weight: 16.47ct (total)
Size: 21.6 x 14.4 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 45.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 623469
Weight: 0.71ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 10.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 233282
Weight: 43.05ct
Size: 34.7 x 26.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 42.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 704354
Weight: 4.12ct
Size: 16 x 5.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 741.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 505527
Weight: 6.82ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 85.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 481778
Weight: 0.84ct
Size: 5.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 15.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 476750
Weight: 60.46ct
Size: 35.2 x 23 mm
Clarity: Opaque
Content: 1 pc
Price: $ 51.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 656272
Weight: 12.10ct
Size: 35.9 x 14.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 61.86
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
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 always enjoy the selection and the unique cuts I can find here. I would love to see more hex cuts tho! Maybe some rose cuts too!

Posted By Blkfower83 in October, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 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 -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.

Posted By Nate in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, package and info of your gems.

Posted By Diana in April, 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 -> 8 star ratings

Excellent selection of stones -including ones I had never heard of before -nice site and fairly easy to use

Posted By DrD in May, 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
Enlarged Gemstone Image