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: 479891
Weight: 3.66ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 33.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 446064
Weight: 5.11ct
Size: 13.5 x 10.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 37.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 555101
Weight: 1.47ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 55.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 645439
Weight: 1.42ct
Size: 9.1 x 3.4 mm
Clarity: VS
Content: 1 pc
Price: $ 20.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 662136
Weight: 2.18ct
Size: 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 2.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 435858
Weight: 7.13ct
Size: 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 23.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 698504
Weight: 2.25ct
Size: 7.6 x 6.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 13.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 640741
Weight: 0.94ct
Size: 5.9 x 5.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 6.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 551440
Weight: 2.97ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 26.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 416065
Weight: 1.57ct
Size: 18.1 x 3.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 49.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 460997
Weight: 6.37ct
Size: 13.7 x 9.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 58.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 485220
Weight: 5.72ct (total)
Size: 9.4 x 9.2 mm
Clarity: Translucent
Content: 4 pcs
Price: $ 30.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 476975
Weight: 32.98ct
Size: 18.4 x 14.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 118.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 731004
Weight: 16.47ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 20.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 306912
Weight: 3.36ct (total)
Size: 3 x 3 mm (calibrated)
Clarity: Transparent
Content: 20 pcs
Price: $ 75.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 634649
Weight: 1.11ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 19.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 521073
Weight: 2.68ct
Size: 9.1 x 7.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 63.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 552287
Weight: 5.49ct
Size: 15.9 x 11.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 476850
Weight: 13.76ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 54.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 385073
Weight: 10.31ct
Size: 22.4 x 12.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 92.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 686498
Weight: 0.63ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 638305
Weight: 3.08ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 15.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 389497
Weight: 1.90ct (total)
Size: 5.7 x 4 mm
Clarity: VVS-VS
Content: 4 pcs
Price: $ 100.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 737091
Weight: 9.98ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 14.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 747434
Weight: 1.71ct
Size: 7 x 6.4 mm
Clarity: VVS
Content: 1 pc
Price: $ 307.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 745983
Weight: 2.19ct
Size: 8.2 x 7 mm
Clarity: VVS
Content: 1 pc
Price: $ 70.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 419520
Weight: 1.29ct
Size: 6.5 x 6.1 mm
Clarity: VS
Content: 1 pc
Price: $ 205.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 428014
Weight: 37.15ct
Size: 26.6 x 23.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 32.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 594182
Weight: 0.96ct
Size: 5.3 x 5.3 mm
Clarity: SI
Content: 1 pc
Price: $ 22.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 401776
Weight: 2.93ct (total)
Size: 5 mm (calibrated)
Clarity: VVS-VS
Content: 4 pcs
Price: $ 119.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 588574
Weight: 6.29ct
Size: 15 x 11 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 734744
Weight: 7.53ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 316.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 742820
Weight: 2.05ct
Size: 8.1 x 7.6 mm
Clarity: VS
Content: 1 pc
Price: $ 307.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 722825
Weight: 0.61ct
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 18.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 639447
Weight: 1.35ct
Size: 7.2 x 6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 8.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 742830
Weight: 1.35ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 162.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 463849
Weight: 10.34ct
Size: 15 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 20.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 722762
Weight: 0.45ct
Size: 5.2 x 4.8 mm
Clarity: VS
Content: 1 pc
Price: $ 13.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 362445
Weight: 2.87ct
Size: 25.2 x 4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 120.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 572344
Weight: 1.19ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 37.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 526765
Weight: 0.84ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 619996
Weight: 8.74ct (total)
Size: 12 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 23.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 376665
Weight: 1.76ct
Size: 7.6 x 6.6 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 13.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 524837
Weight: avg. 7.67 ct / each
Size: 11 mm (calibrated)
Clarity: Opaque
Price: $ 4.64
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 519896
Weight: 16.07ct
Size: 21.1 x 10.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 18.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 645185
Weight: 2.27ct
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 12.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 672515
Weight: 0.78ct
Size: 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 18.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 747203
Weight: 0.14ct
Size: 3.4 mm
Clarity: VS
Content: 1 pc
Price: $ 283.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 517339
Weight: 21.47ct
Size: 15 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 25.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 727887
Weight: 1.75ct
Size: 7.5 x 6.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 705449
Weight: 10.19ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 9.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 605083
Weight: 1.26ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 29.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 517848
Weight: 1.84ct
Size: 12.2 x 4.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 167.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 437936
Weight: 1.49ct
Size: 16 x 3 mm
Clarity: VVS
Content: 1 pc
Price: $ 49.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 463486
Weight: 3.62ct (total)
Size: 11.9 x 5.8 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 47.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 707120
Weight: 1.86ct
Size: 8 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 393481
Weight: 8.43ct
Size: 13 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 55.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 449739
Weight: 4.55ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 30.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 720789
Weight: 0.48ct
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 4.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 728206
Weight: 0.51ct
Size: 5.4 x 4.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 3.06
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
757
Choose Page
1 - 772

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 -> 9 star ratings

If you have motion picture, then I will be more satisfied with.

Posted By Ray in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

So far So good

Posted By VH-1 in July, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I did not have any problems

Posted By Clilrichard in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Great for buying gemstones, came with authenticity certs. Will buy again someday!

Posted By Uggadugga in May, 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 have been buying gems for several years off and on and love their selection and great low prices. I started out wanting to get an example of each type of gem but after looking at all the types of gems and reading about them I realize it is almost impossible for me to do. It took me years just to read about them all. Gem Select is the best gem site you can find. For information or to buy. Steve M.

Posted By Stevee M. in January, 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 -> 9 star ratings

I love wide range of stones. Always have my preference.

Posted By Ray in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Site is easy to navigate and the variety is great and how often new products are added is also great.

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