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: 306924
Weight: 2.61ct
Size: 8.1 x 6.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 9.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 585856
Weight: 9.60ct
Size: 20.5 x 12 mm
Clarity: Transparent
Content: 1 pc
Price: $ 63.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 594186
Weight: 0.88ct
Size: 5.2 x 5.2 mm
Clarity: SI
Content: 1 pc
Price: $ 20.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 405155
Weight: 2.18ct
Size: 8.3 x 6.8 mm
Clarity: VS
Content: 1 pc
Price: $ 113.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 448451
Weight: 1.43ct
Size: 8 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 7.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 427874
Weight: 1.09ct
Size: 9 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 11.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 459975
Weight: 4.38ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 40.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 656232
Weight: 1.53ct
Size: 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 36.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 712002
Weight: 12.23ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 32.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 570186
Weight: 2.24ct
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 53.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 717444
Weight: 1.29ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 26.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 463983
Weight: 4.76ct
Size: 12 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 9.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 740682
Weight: 0.09ct
Size: 4 x 2 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 376.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 711545
Weight: 1.18ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 23.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 541100
Weight: 8.65ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 12.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 713756
Weight: 3.71ct
Size: 12.9 x 7.2 mm
Clarity: Transparent
Content: 1 pc
Price: $ 31.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 400243
Weight: 2.43ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 8.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 297168
Weight: 35.80ct
Size: 27.5 x 21.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 47.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 706991
Weight: 2.01ct
Size: 8 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 497250
Weight: 2.72ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 25.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 283442
Weight: 1.05ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 135.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 687635
Weight: 1.24ct
Size: 7 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 1.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 718850
Weight: 0.86ct
Size: 6 x 4.9 mm
Clarity: VVS
Content: 1 pc
Price: $ 15.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 709079
Weight: 1.67ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 34.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 446509
Weight: 8.09ct
Size: 15.1 x 11 mm
Clarity: Transparent
Content: 1 pc
Price: $ 26.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 711081
Weight: 2.03ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 40.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 627967
Weight: 13.29ct
Size: 21.7 x 13.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 79.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 737183
Weight: 33.60ct
Size: 37.8 x 11.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 3.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 673447
Weight: 1.59ct (total)
Size: 5.2 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 38.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 622321
Weight: 0.82ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 15.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 381312
Weight: 1.80ct (total)
Size: 3.8 x 3.7 mm
Clarity: VS
Content: 5 pcs
Price: $ 46.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 573672
Weight: 4.82ct
Size: 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 38.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 554275
Weight: 28.90ct
Size: 23.8 x 14.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 35.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 656765
Weight: 2.34ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 14.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 556886
Weight: 0.74ct
Size: 5.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 33.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 743660
Weight: 12.79ct
Size: 19 x 19 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 51.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 361817
Weight: 24.81ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 32.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 677989
Weight: 11.36ct
Size: 22.4 x 19.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 14.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 664267
Weight: 1.73ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 12.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 658247
Weight: 17.44ct
Size: 16.7 x 16.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 25.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 713775
Weight: 0.91ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 15.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 712307
Weight: 6.97ct (total)
Size: 14 x 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 18.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 687681
Weight: 7.39ct
Size: 15.3 x 14.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 21.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 688254
Weight: 0.25ct
Size: 3.8 x 3.8 mm
Clarity: VS
Content: 1 pc
Price: $ 16.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 745788
Weight: 0.95ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 712799
Weight: 11.00ct (total)
Size: 16 x 8 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 29.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 418435
Weight: 10.63ct
Size: 18 x 11.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 21.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 712069
Weight: 0.89ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 17.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 700480
Weight: 0.70ct
Size: 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 42.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 712754
Weight: 1.99ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 47.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 710338
Weight: 9.03ct
Size: 15.5 x 10.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 287.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 664829
Weight: 1.08ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 11.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 721003
Weight: 0.46ct
Size: 8 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 3.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 726938
Weight: 0.45ct
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 13.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 447881
Weight: 21.88ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 86.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 418577
Weight: 5.89ct
Size: 15.9 x 10.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 11.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 497188
Weight: 27.66ct
Size: 27 x 20 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 23.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 673882
Weight: 7.63ct
Size: 15 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 118.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 390550
Weight: 1.76ct (total)
Size: 5 x 3.2 mm
Clarity: VS
Content: 6 pcs
Price: $ 113.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 319459
Weight: 3.32ct
Size: 11.3 x 7.2 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 8.76
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
536
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

love the site, the experience and the products.

Posted By Ckingpots in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I like the way your website shows us what stone were buying as well the easy way to navigate the site. also knowing the stones are real...

Posted By RED in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The stones are very nice.

Posted By Mvk in August, 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

Overall Rating -> 10 star ratings

Great selection. Maybe too great i kept adding and deleting stuff because i found better looking ones

Posted By Edsor works in October, 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

this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.

Posted By Tommyp in November, 2025
Source: Bizrate

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

The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.

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