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: 323468
Weight: 11.12ct
Size: 15.2 x 13.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 17.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 694291
Weight: 16.09ct
Size: 26.1 x 15.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 48.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 678067
Weight: 11.46ct
Size: 21 x 16.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 14.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 611864
Weight: 2.43ct (total)
Size: 7 x 6.1 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 57.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 706677
Weight: 17.22ct
Size: 27.9 x 18.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 664132
Weight: 0.93ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Price: $ 6.51
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 640027
Weight: 2.11ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 52.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 626901
Weight: 0.97ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 19.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 691208
Weight: 1.20ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 64.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 349554
Weight: 1.52ct
Size: 18.2 x 3.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 44.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 713842
Weight: 0.96ct
Size: 7.6 x 5.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 8.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 693364
Weight: 27.69ct
Size: 34.7 x 19.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 682990
Weight: 10.59ct
Size: 20.1 x 10 mm
Clarity: Transparent
Content: 1 pc
Price: $ 101.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 594616
Weight: 2.33ct
Size: 9.8 x 7.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 55.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 464305
Weight: 4.24ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 39.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 627969
Weight: 12.51ct
Size: 23.5 x 14.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 75.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 564792
Weight: 0.19ct
Size: 3.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 86.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 647608
Weight: 2.28ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 51.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 552564
Weight: 5.88ct
Size: 15.6 x 11.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 15.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 491604
Weight: 17.97ct (total)
Size: 19.9 x 10.1 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 17.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 697854
Weight: 6.90ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 57.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 524911
Weight: 1.35ct
Size: 6.7 x 6.1 mm
Clarity: VS
Content: 1 pc
Price: $ 249.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 619990
Weight: 8.40ct (total)
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 22.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 530263
Weight: 6.77ct (total)
Size: 9.5 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 26.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 482177
Weight: 2.10ct
Size: 8.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 15.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 484032
Weight: 59.91ct
Size: 34.2 x 23 mm
Clarity: Opaque
Content: 1 pc
Price: $ 118.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 695589
Weight: 0.33ct
Size: 4.7 x 3.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 11.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 662678
Weight: 19.97ct (total)
Size: 20.2 x 16.1 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 14.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 594088
Weight: 1.26ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 25.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 431056
Weight: 1.54ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 16.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 696441
Weight: 49.54ct
Size: 31.5 x 25 mm
Clarity: Opaque
Content: 1 pc
Price: $ 89.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 724657
Weight: 0.87ct
Size: 10 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 26.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 726035
Weight: 2.36ct (total)
Size: 7.1 x 6.1 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 93.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 406819
Weight: 10.86ct
Size: 14.2 x 11.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 43.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 348929
Weight: 36.10ct
Size: 25 x 20.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 47.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 462956
Weight: 4.64ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 36.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 499240
Weight: 1.86ct
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 33.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 711494
Weight: 1.75ct
Size: 9 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 681984
Weight: 11.68ct
Size: 15.7 x 12.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 70.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 695010
Weight: 65.25ct
Size: 51.8 x 32.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 62.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 454414
Weight: 0.84ct
Size: 10.5 x 4.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 35.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 376590
Weight: 2.63ct
Size: 8.8 x 7.8 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 20.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 451021
Weight: 1.62ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 14.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 598640
Weight: 1.73ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 114.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 636196
Weight: 1.50ct
Size: 8 x 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 43.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 729977
Weight: 0.69ct
Size: 8.7 x 3.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 41.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 375996
Weight: 7.45ct (total)
Size: 7.4 x 6.6 mm
Clarity: Transparent
Content: 4 pcs
Price: $ 57.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 590855
Weight: 36.45ct
Size: 25 x 18 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 240.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 737144
Weight: 4.80ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 389511
Weight: 3.18ct (total)
Size: 7.5 x 5.8 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 20.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 559006
Weight: 2.70ct
Size: 8.7 x 6.7 mm
Clarity: SI
Content: 1 pc
Price: $ 55.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 710235
Weight: 5.57ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 46.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 711966
Weight: 1.54ct
Size: 9 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 678877
Weight: 9.98ct
Size: 21.9 x 14 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 711619
Weight: 27.95ct
Size: 22.8 x 18.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 50.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 677108
Weight: 9.18ct
Size: 16.5 x 13.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 6.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 400198
Weight: 7.19ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 23.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 707976
Weight: 5.00ct
Size: 14.4 x 10.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 4.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 645196
Weight: 2.16ct
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 12.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 715705
Weight: 0.68ct
Size: 5.3 x 4.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 43.25
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
138
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 love the product and the details about each of them.

Posted By Love It! in July, 2025
Source: Bizrate

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

When I need a specific stone, gem select is my go to shop. Always a good experience and a great product.

Posted By LeAnn in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Muy serios y muy oportunos para el envo

Posted By Veronica in September, 2024
Source: Bizrate

Overall Rating -> 9 star ratings

Been using them for years! Very satisfied with the products.

Posted By PI SC 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

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

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 -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate
Enlarged Gemstone Image