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: 637740
Weight: 2.05ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 19.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 644457
Weight: 4.71ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 35.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 534779
Weight: 3.09ct
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 544460
Weight: 0.95ct
Size: 6.3 x 4.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 42.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 431095
Weight: 3.06ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 32.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 577846
Weight: 1.39ct (total)
Size: 7.8 x 5.7 mm
Clarity: VS
Content: 2 pcs
Price: $ 73.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 434936
Weight: 42.80ct
Size: 32.6 x 25.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 84.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 715540
Weight: 4.06ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 723271
Weight: 1.67ct
Size: 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 16.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 601878
Weight: 8.34ct (total)
Size: 19.3 x 8.1 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 44.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 442858
Weight: 3.80ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 10.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 526048
Weight: 1.07ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Price: $ 28.25
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 413126
Weight: 3.79ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 100.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 711050
Weight: 15.13ct
Size: 17.8 x 14.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 27.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 578716
Weight: 2.13ct
Size: 9 x 6.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 14.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 649877
Weight: 10.54ct
Size: 18.5 x 13.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 7.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 391229
Weight: 1.15ct
Size: 7.6 x 5.3 mm
Clarity: SI
Content: 1 pc
Price: $ 68.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 694484
Weight: 39.19ct
Size: 31.9 x 22.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 42.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 744810
Weight: 3.54ct
Size: 14.7 x 9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 17.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 601131
Weight: 3.77ct (total)
Size: 12.1 x 6 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 24.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 667942
Weight: 27.91ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 100.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 349571
Weight: 1.47ct
Size: 14.1 x 3.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 366298
Weight: 1.14ct
Size: 7.8 x 5.6 mm
Clarity: VS
Content: 1 pc
Price: $ 160.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 532960
Weight: 1.24ct
Size: 7 x 5.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 4.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 611877
Weight: 10.39ct
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 148.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 511638
Weight: 1.37ct
Size: 7.3 x 6 mm
Clarity: VS
Content: 1 pc
Price: $ 25.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 704941
Weight: 35.56ct
Size: 36.6 x 11.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 731026
Weight: 11.42ct (total)
Size: 19.4 x 12.2 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 7.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 463239
Weight: 3.89ct
Size: 14 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 30.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 505978
Weight: 52.67ct
Size: 27 x 20 mm (calibrated)
Clarity: IF
Content: 1 pc
Price: $ 417.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 457148
Weight: 1.65ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 15.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 619178
Weight: 18.22ct (total)
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 48.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 599847
Weight: 42.34ct
Size: 27.5 x 20.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 31.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 560873
Weight: 0.91ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 8.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 479291
Weight: 2.30ct (total)
Size: 10.1 x 5.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 24.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 708437
Weight: 1.51ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 31.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 632300
Weight: 6.14ct (total)
Size: 17.9 x 7 mm
Clarity: VVS
Content: 2 pcs
Price: $ 44.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 656115
Weight: 1.94ct
Size: 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 46.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 458863
Weight: 2.73ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 5.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 687735
Weight: 14.98ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 682563
Weight: 0.54ct
Size: 5.7 x 3.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 9.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 554284
Weight: 0.95ct
Size: 6.7 x 4.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 25.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 608433
Weight: 8.38ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 129.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 493108
Weight: 6.48ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 46.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 712461
Weight: 4.17ct
Size: 12 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 11.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 697110
Weight: 6.91ct
Size: 18 x 9.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 49.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 497954
Weight: 22.13ct
Size: 19.8 x 13.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 24.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 418148
Weight: 7.90ct (total)
Size: 14.1 x 9.8 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 15.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 485131
Weight: 3.96ct (total)
Size: 9 x 9 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 20.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 384247
Weight: 1.22ct
Size: 15.3 x 3.2 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 31.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 504001
Weight: 1.97ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 609059
Weight: 2.65ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 2 pcs
Price: $ 66.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 635663
Weight: 5.79ct
Size: 13 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 48.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 711630
Weight: 18.89ct
Size: 18 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 158.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 675175
Weight: 0.57ct
Size: 8.1 x 4.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 4.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 697691
Weight: 0.55ct (total)
Size: 3.5 mm (calibrated)
Clarity: VS-SI
Content: 2 pcs
Price: $ 11.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 478166
Weight: 1.02ct
Size: 9.1 x 5.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 134.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 692140
Weight: 0.57ct
Size: 5 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 34.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 650202
Weight: 9.86ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 6.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 605909
Weight: 29.24ct (total)
Size: 20.8 x 13.8 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 45.54
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
551
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

I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.

Posted By Sam in March, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I think therea's no problem

Posted By Napoleon in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was a good experience looking for and finding a nice amethyst stone

Posted By N/a in May, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Fast and reliable service.

Posted By Zæck in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

No problems. I had a minor address issue in the past and someone got back to me very quickly and we resolved the issue satisfactorily. I appreciated the quick, concerned response. So important when buyer/seller are so far apart in distance. Thank you Gem Select. Keep up the good work!

Posted By Orphanboy in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I'm happy.

Posted By Ray in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am filling a small treasure chest and picked a nice amethyst.

Posted By VinnyD in August, 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

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight in March, 2025
Source: Bizrate
Enlarged Gemstone Image