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: 676047
Weight: 6.53ct
Size: 14 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 39.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 743341
Weight: 13.49ct
Size: 36.2 x 10.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 423562
Weight: 5.15ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 54.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 698782
Weight: 0.84ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 595300
Weight: 25.07ct (total)
Size: 26.3 x 11.5 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 60.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 694866
Weight: 2.39ct
Size: 7.2 x 6.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 71.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 658536
Weight: 7.73ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 27.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 564221
Weight: 0.50ct
Size: 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 30.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 684822
Weight: 17.08ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 17.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 721797
Weight: 11.32ct
Size: 17.3 x 13.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 600272
Weight: 29.80ct
Size: 30.9 x 18.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 22.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 382707
Weight: 34.38ct
Size: 28.1 x 21.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 68.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 708338
Weight: 11.27ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 10.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 713971
Weight: 1.75ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 29.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 706750
Weight: 1.75ct
Size: 15.9 x 5 mm
Clarity: VVS
Content: 1 pc
Price: $ 10.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 640621
Weight: 0.75ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 6.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 723885
Weight: 17.39ct
Size: 17.5 x 12.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 20.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 389851
Weight: 2.76ct (total)
Size: 2.5 mm (calibrated)
Clarity: VS-SI
Content: 40 pcs
Price: $ 258.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 655178
Weight: 1.06ct
Size: 9.1 x 4.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 8.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 574913
Weight: 8.29ct
Size: 18.3 x 9.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 75.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 390584
Weight: 2.08ct
Size: 8.8 x 7.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 74.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 712446
Weight: 4.91ct (total)
Size: 12 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 13.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 532950
Weight: 2.01ct
Size: 8.5 x 6.9 mm
Clarity: VS
Content: 1 pc
Price: $ 37.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 543730
Weight: 0.87ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 698699
Weight: 1.36ct
Size: 7.1 x 5.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 8.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 692168
Weight: 0.66ct
Size: 5 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 39.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 527302
Weight: avg. 0.50 ct / each
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Price: $ 8.32
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 488474
Weight: 1.98ct (total)
Size: 8 x 5.3 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 10.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 493851
Weight: 1.49ct
Size: 12 x 5.8 mm
Clarity: VS
Content: 1 pc
Price: $ 11.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 492544
Weight: 8.96ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 64.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 712681
Weight: 3.95ct
Size: 11 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 10.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 403467
Weight: 10.19ct
Size: 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 42.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 548413
Weight: 1.77ct
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 35.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 377499
Weight: 4.45ct (total)
Size: 7.1 x 5.3 mm
Clarity: VS
Content: 4 pcs
Price: $ 114.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 392301
Weight: 77.71ct
Size: 35.3 x 23.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 74.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 686758
Weight: 0.30ct
Size: 5 x 3 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 14.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 694823
Weight: 23.48ct
Size: 30.2 x 16.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 12.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 744596
Weight: 0.92ct
Size: 6 x 4 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 230.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 418213
Weight: 4.76ct
Size: 14 x 9 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 9.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 503985
Weight: 2.26ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 15.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 551170
Weight: 3.07ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Price: $ 28.37
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 688782
Weight: 0.52ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 15.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 473497
Weight: 0.99ct
Size: 8.8 x 5.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 71.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 688307
Weight: 1.09ct
Size: 6.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 3.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 585073
Weight: 1.14ct (total)
Size: 5 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 7.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 379750
Weight: 2.22ct (total)
Size: 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 125.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 687806
Weight: 2.09ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 6.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 567236
Weight: 2.42ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 54.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 598770
Weight: 8.26ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 109.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 404005
Weight: 71.36ct
Size: 27 x 21.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 282.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 427468
Weight: 2.53ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 16.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 497562
Weight: 2.07ct
Size: 8.4 x 6.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 54.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 691083
Weight: 0.62ct
Size: 5.5 x 4.6 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 37.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 673299
Weight: 0.64ct
Size: 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 15.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 685689
Weight: 2.12ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 39.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 721416
Weight: 0.72ct
Size: 5.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 34.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 677854
Weight: 0.12ct
Size: 2.8 x 2.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 482405
Weight: 40.36ct
Size: 35.9 x 26.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 29.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 676001
Weight: 5.59ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 33.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 742898
Weight: 21.65ct
Size: 25.9 x 15.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 86.60
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
180
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

Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.

Posted By Sal in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.

Posted By Sina in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

easy site to navigate

Posted By Curt's Cabochons in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

On the clarity options it goes "and better" so if youre looking for si specifically and you click si and better it still shows you basically everything. It just removes the opaques. Itd be nice if it was vs only, vss only, si only, etc

Posted By Iamnotakrustykrab in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.

Posted By Fried Rice in August, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

The purchasing process is fairly quick and straightforward and for me user friendly so it probably took more or less than 3 minutes to purchase and pay for the items. I wish there was a discount offer for multiple items to encourage us buyers to purchase more an incentive and add more sales in your end. Besides that, it's been a great purchasing experience and will continue to shop as I am a repeat customer and have bought from your store many times before. Thank you.

Posted By Emmanuel in October, 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 -> 9 star ratings

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

Posted By PI SC in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, presentation and the price of the stones. I love the identification card - report they send with each stone.

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