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: 654812
Weight: 26.19ct
Size: 25.6 x 24.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 81.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 338225
Weight: 10.64ct
Size: 12.1 x 11.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 35.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 625258
Weight: 1.15ct
Size: 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 23.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 541562
Weight: 3.42ct (total)
Size: 7.9 x 6.3 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 68.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 707084
Weight: 1.75ct
Size: 10.2 x 5.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 4.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 478852
Weight: 0.67ct
Size: 6.1 x 4.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 28.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 705711
Weight: 24.05ct (total)
Size: 29.5 x 13.9 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 28.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 735191
Weight: 2.07ct
Size: 8.5 x 7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 99.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 618049
Weight: 17.31ct (total)
Size: 16 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 45.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 458603
Weight: 1.40ct (total)
Size: 4.5 x 3.6 mm
Clarity: VS
Content: 4 pcs
Price: $ 184.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 408281
Weight: 7.81ct
Size: 12 x 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 18.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 647614
Weight: 1.60ct
Size: 8 x 6.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 36.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 404519
Weight: 14.65ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 96.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 489732
Weight: 2.64ct (total)
Size: 4.5 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 47.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 638171
Weight: 0.38ct
Size: 5 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 39.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 497561
Weight: 1.73ct
Size: 8 x 6.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 45.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 493030
Weight: 8.97ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 64.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 446021
Weight: 6.22ct
Size: 15 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 45.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 698513
Weight: 26.98ct
Size: 26.5 x 13.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 26.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 378365
Weight: 27.88ct (total)
Size: 20.1 x 9.9 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 110.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 502054
Weight: 1.84ct
Size: 11.8 x 6 mm
Clarity: VVS-VS
Price: $ 21.94
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 688859
Weight: 1.06ct
Size: 12.2 x 4.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 10.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 382349
Weight: 9.31ct
Size: 17.2 x 11.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 49.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 390585
Weight: 1.94ct (total)
Size: 4.2 x 3.2 mm
Clarity: VS
Content: 9 pcs
Price: $ 124.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 719301
Weight: 0.67ct
Size: 5.1 x 4.2 mm
Clarity: VS
Content: 1 pc
Price: $ 12.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 713453
Weight: 1.72ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 28.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 526872
Weight: 3.60ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 26.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 739015
Weight: 0.40ct
Size: 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 20.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 494381
Weight: 29.15ct
Size: 30.1 x 14.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 15.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 471057
Weight: 1.73ct
Size: 7.6 x 7.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 15.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 730486
Weight: 1.09ct
Size: 10.4 x 3.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 65.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 726176
Weight: 1.40ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 55.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 648956
Weight: 1.33ct
Size: 7.2 x 6.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 3.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 554049
Weight: 1.50ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 39.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 744807
Weight: 3.94ct
Size: 12.1 x 8.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 477893
Weight: 6.46ct
Size: 14 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 45.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 725611
Weight: 0.90ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 8.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 718160
Weight: 0.73ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 387502
Weight: 2.37ct (total)
Size: 4.1 x 3.2 mm
Clarity: VS
Content: 10 pcs
Price: $ 210.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 569274
Weight: 2.38ct
Size: 9 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 47.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 379180
Weight: 1.67ct (total)
Size: 8 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 100.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 571140
Weight: 3.50ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 705605
Weight: 0.67ct
Size: 5.1 x 4.3 mm
Clarity: VS
Content: 1 pc
Price: $ 27.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 533781
Weight: 3.68ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 34.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 682513
Weight: 0.80ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 14.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 567474
Weight: 0.16ct (total)
Size: 2.8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 344.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 416268
Weight: 1.08ct
Size: 14 x 3.4 mm
Clarity: VS
Content: 1 pc
Price: $ 31.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 656768
Weight: 2.47ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 14.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 712662
Weight: 4.65ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 66.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 448976
Weight: 6.48ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 21.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 534197
Weight: 1.53ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 14.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 742819
Weight: 3.74ct
Size: 12.8 x 6.4 mm
Clarity: VS
Content: 1 pc
Price: $ 561.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 481396
Weight: 1.82ct
Size: 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 43.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 571161
Weight: 0.97ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 8.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 411742
Weight: 1.40ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 64.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 658534
Weight: 11.27ct
Size: 25.3 x 14.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 40.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 560077
Weight: 1.77ct
Size: 8.4 x 6.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 39.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 721755
Weight: 55.70ct
Size: 40.7 x 24.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 66.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 687207
Weight: 0.37ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 14.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 512797
Weight: 2.56ct
Size: 9.2 x 7.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 55.39
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
406
Choose Page
1 - 772

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 found what I was looking for...had to look up millimeters to inches. It would be nice to see something, like a quarter, in the pix to show relative size. I plan on buy loose gemstones for every month in the calendar

Posted By TheP in January, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Will know more once order received

Posted By Jim in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Easy to conduct search, good amount of stock to select from along with variety of prices.

Posted By Que in June, 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 -> 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

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

Posted By VH-1 in July, 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
Enlarged Gemstone Image