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: 676230
Weight: 4.73ct
Size: 18.1 x 10.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 679145
Weight: 17.63ct
Size: 23.8 x 14.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 105.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 656156
Weight: 0.81ct
Size: 7 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 19.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 392850
Weight: 7.25ct (total)
Size: 12 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 47.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 490139
Weight: 1.42ct
Size: 6.7 x 6.3 mm
Clarity: VS
Content: 1 pc
Price: $ 116.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 392909
Weight: 2.28ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 60.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 574267
Weight: 3.06ct
Size: 8 x 6.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 28.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 501563
Weight: 1.45ct
Size: 14.8 x 3.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 47.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 704994
Weight: 24.88ct
Size: 41.2 x 9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 5.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 431065
Weight: 1.45ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 15.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 578676
Weight: 17.94ct
Size: 27.7 x 19.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 35.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 530107
Weight: 1.37ct
Size: 9 x 7 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 43.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 505033
Weight: 8.02ct
Size: 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 52.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 419104
Weight: 8.25ct
Size: 14.5 x 10.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 43.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 554034
Weight: 21.57ct
Size: 15 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 26.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 693540
Weight: 60.01ct
Size: 40.8 x 33.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 385163
Weight: 6.69ct
Size: 19.2 x 11.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 60.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 431555
Weight: 2.87ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 27.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 683636
Weight: 7.00ct
Size: 16.4 x 11.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 64.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 449629
Weight: 4.90ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 32.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 433493
Weight: 4.46ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 29.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 730022
Weight: 1.15ct
Size: 15.5 x 3.1 mm
Clarity: VS
Content: 1 pc
Price: $ 69.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 610616
Weight: avg. 0.44 ct / each
Size: 6 x 5 mm
Clarity: VS
Price: $ 3.38
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 542603
Weight: 0.83ct
Size: 5.5 x 5.1 mm
Clarity: VS
Content: 1 pc
Price: $ 37.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 744499
Weight: 1.34ct
Size: 7 x 5.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 56.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 686613
Weight: 3.04ct
Size: 10.4 x 8.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 3.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 400966
Weight: 3.26ct
Size: 9 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 19.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 382231
Weight: 3.67ct (total)
Size: 3.2 mm
Clarity: VS
Content: 30 pcs
Price: $ 194.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 568334
Weight: 10.02ct
Size: 18.3 x 12.5 mm
Clarity: SI-I1
Content: 1 pc
Price: $ 542.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 398155
Weight: 1.68ct
Size: 17.9 x 3.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 48.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 418152
Weight: 11.85ct (total)
Size: 16.4 x 10.7 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 23.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 672677
Weight: 1.43ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 34.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 696056
Weight: 0.46ct
Size: 5 x 4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 16.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 431641
Weight: 1.45ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 15.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 713951
Weight: 1.83ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 12.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 706499
Weight: 14.40ct
Size: 16.5 x 13.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 29.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 484891
Weight: 2.48ct (total)
Size: 3.9 x 2.8 mm
Clarity: VS
Content: 20 pcs
Price: $ 163.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 552298
Weight: 10.77ct
Size: 20 x 15 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 28.43
Item in Stock
More Options & Item Details
Add to Cart
ID: 623112
Weight: 1.70ct
Size: 6.6 x 6.6 mm
Clarity: VS
Content: 1 pc
Price: $ 32.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 708434
Weight: 1.69ct
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 34.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 389617
Weight: 2.62ct (total)
Size: 7.8 x 6.3 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 17.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 639863
Weight: 0.42ct
Size: 5.3 x 3.6 mm
Clarity: VS
Content: 1 pc
Price: $ 22.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 569305
Weight: 2.17ct
Size: 8 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 43.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 740705
Weight: 0.92ct
Size: 7.3 x 5.4 mm
Clarity: VS
Content: 1 pc
Price: $ 266.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 701104
Weight: 0.71ct
Size: 5.4 x 5.3 mm
Clarity: VS
Content: 1 pc
Price: $ 30.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 586442
Weight: 1.54ct
Size: 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 101.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 390798
Weight: 1.38ct
Size: 17.8 x 3.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 418628
Weight: 27.79ct (total)
Size: 17.4 x 11.3 mm
Clarity: Translucent
Content: 4 pcs
Price: $ 55.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 454043
Weight: 0.63ct
Size: 8.8 x 3.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 700040
Weight: 0.47ct
Size: 4.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 28.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 414695
Weight: 8.10ct
Size: 11.5 x 11.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 53.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 465253
Weight: 5.30ct
Size: 14 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 46.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 463231
Weight: 1.56ct
Size: 7.1 x 5.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 30.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 658531
Weight: 23.05ct
Size: 25.6 x 13.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 82.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 526858
Weight: 0.94ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 408212
Weight: 7.50ct
Size: 12 x 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 17.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 707955
Weight: 3.76ct
Size: 14.2 x 10.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 3.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 451561
Weight: 4.75ct (total)
Size: 2.2 mm
Clarity: VS
Content: 100 pcs
Price: $ 250.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 715112
Weight: 2.31ct (total)
Size: 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 5.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 730326
Weight: 1.35ct
Size: 8.2 x 6.4 mm
Clarity: VS
Content: 1 pc
Price: $ 189.00
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
122
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

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

It's mostly good, only some item's are easier to find through the search than the menu

Posted By Wayne in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

love these guys been ordering since 2000 maybe

Posted By JHT in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It's always a pleasure doing business with Gem Select. Outstanding products ant very reasonable prices. Thank You One and All.

Posted By G.W. or Bakyow in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very good Hoping you will increase your inventory especially in the 6mm Thanks

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10

Posted By KT in September, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring

Posted By Desertchick in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

very good

Posted By Son Gift in January, 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
Enlarged Gemstone Image