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: 635163
Weight: 1.05ct
Size: 6.9 x 5.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 27.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 579547
Weight: 3.60ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 47.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 672036
Weight: 34.59ct
Size: 34.1 x 20.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 34.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 345085
Weight: 51.74ct
Size: 28.7 x 19.6 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 88.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 673877
Weight: 1.03ct
Size: 9.8 x 6.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 43.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 497557
Weight: 2.15ct
Size: 9 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 56.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 517609
Weight: 0.92ct
Size: 5.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 36.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 438838
Weight: 2.66ct (total)
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 52.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 684637
Weight: 0.46ct
Size: 5.1 x 4.1 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 19.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 660669
Weight: 1.26ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 30.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 563593
Weight: 2.92ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 19.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 645775
Weight: 11.70ct
Size: 25.5 x 12.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 692996
Weight: 29.14ct
Size: 39.8 x 9.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 10.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 387700
Weight: 2.08ct (total)
Size: 4 x 3 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 184.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 521691
Weight: 2.59ct
Size: 9.1 x 7.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 61.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 636613
Weight: 0.99ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 52.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 708517
Weight: 1.45ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 29.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 658710
Weight: 17.81ct
Size: 17.1 x 16.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 674112
Weight: 2.77ct
Size: 12 x 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 43.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 508966
Weight: 33.30ct
Size: 23.4 x 16.1 mm
Clarity: IF
Content: 1 pc
Price: $ 307.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 502959
Weight: 2.63ct
Size: 16.1 x 4.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 86.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 435754
Weight: 2.15ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 14.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 687854
Weight: 0.27ct
Size: 6 x 3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 12.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 273239
Weight: 22.71ct
Size: 20.3 x 19.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 450458
Weight: 7.27ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 67.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 635167
Weight: 1.89ct
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 49.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 673516
Weight: 2.80ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 67.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 706772
Weight: 1.12ct
Size: 10 x 5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 2.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 517482
Weight: 1.57ct
Size: 7.7 x 6.4 mm
Clarity: VS
Content: 1 pc
Price: $ 31.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 728015
Weight: 2.66ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 6.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 393411
Weight: 9.53ct
Size: 13 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 62.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 640018
Weight: 0.33ct
Size: 5 x 3 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 15.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 448968
Weight: 2.91ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 19.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 350530
Weight: 2.83ct (total)
Size: 3 x 3 mm (calibrated)
Clarity: Transparent
Content: 20 pcs
Price: $ 64.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 476986
Weight: 32.40ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 128.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 386506
Weight: 3.90ct
Size: 17.9 x 9.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 31.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 687730
Weight: 13.64ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 16.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 674963
Weight: 11.89ct
Size: 17 x 14.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 30.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 634646
Weight: 1.21ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 21.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 691414
Weight: 2.81ct
Size: 9.1 x 5.4 mm
Clarity: VVS
Content: 1 pc
Price: $ 93.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 431364
Weight: 2.44ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 25.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 558531
Weight: 1.92ct (total)
Size: 6.9 x 4.7 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 7.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 328312
Weight: 13.95ct (total)
Size: 12 x 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 92.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 350497
Weight: 3.25ct (total)
Size: 2.9 x 2.8 mm
Clarity: Transparent
Content: 30 pcs
Price: $ 74.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 392235
Weight: 7.57ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 49.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 392805
Weight: 7.58ct
Size: 14 x 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 50.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 497076
Weight: 2.23ct
Size: 8.8 x 7.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 40.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 408345
Weight: 10.43ct
Size: 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 24.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 691512
Weight: 34.95ct
Size: 33.7 x 21.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 25.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 651031
Weight: 6.36ct
Size: 13 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 26.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 487188
Weight: 7.95ct
Size: 15.1 x 11.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 81.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 711962
Weight: 1.78ct
Size: 7.9 x 6.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 42.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 708485
Weight: 1.61ct
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 33.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 700594
Weight: 0.56ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Price: $ 5.38
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 481391
Weight: 1.65ct
Size: 6.5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 47.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 713952
Weight: 2.08ct (total)
Size: 8.2 x 6.3 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 17.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 384490
Weight: 13.20ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 52.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 714382
Weight: 0.66ct (total)
Size: 4.2 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 19.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 623083
Weight: 8.96ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 41.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 400246
Weight: 2.94ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 9.71
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
199
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

nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic

Posted By Steve m. in February, 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 -> 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

Im not a jeweler, I buy for my personal use. My dad was a jewelry maker and I love gemstones.

Posted By Andie in September, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

Good selection, using for custom jewlery for my wife.

Posted By Smitty in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

the selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

excellent deals-excellent service-fair prices

Posted By JD in April, 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