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: 586705
Weight: 6.17ct
Size: 15.4 x 13.5 mm
Clarity: Transparent
Content: 1 pc
Price: $ 407.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 604646
Weight: 19.12ct
Size: 24 x 14.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 94.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 495949
Weight: 1.19ct
Size: 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 66.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 715332
Weight: 1.67ct
Size: 7.8 x 5.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 240.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 603162
Weight: 2.00ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 546.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 656739
Weight: avg. 6.19 ct / each
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Price: $ 7.31
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 524645
Weight: avg. 0.96 ct / each
Size: 5.3 mm
Clarity: VS-SI
Price: $ 13.93
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 438043
Weight: 13.83ct
Size: 14.7 x 11.5 mm
Clarity: VS
Content: 1 pc
Price: $ 365.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 602194
Weight: 15.94ct
Size: 18 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 77.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 494033
Weight: 8.17ct
Size: 13.8 x 12.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 26.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 338674
Weight: 3.17ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: SI
Content: 2 pcs
Price: $ 144.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 666097
Weight: 12.05ct
Size: 28.2 x 12.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 41.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 693872
Weight: 6.92ct
Size: 14 x 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 20.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 416872
Weight: 7.96ct
Size: 16.6 x 8.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 35.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 429482
Weight: 1.55ct
Size: 6.9 x 5.8 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 93.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 616832
Weight: 0.89ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 58.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 256349
Weight: 18.78ct
Size: 18.1 x 16.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 396.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 415387
Weight: 1.09ct
Size: 7.8 x 5.4 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 863.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 522212
Weight: 57.58ct
Size: 44.5 x 28.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 58.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 601429
Weight: 11.59ct
Size: 15 x 15 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 56.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 567804
Weight: 6.05ct
Size: 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 15.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 513401
Weight: 1.17ct
Size: 5.6 x 5.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 126.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 562611
Weight: 14.93ct
Size: 16 x 10.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 39.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 346386
Weight: 1.11ct
Size: 8 x 5.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 43.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 447906
Weight: 71.86ct
Size: 43.1 x 31 mm
Clarity: Opaque
Content: 1 pc
Price: $ 86.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 510934
Weight: 37.10ct (total)
Size: 18.4 x 15 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 79.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 414944
Weight: 7.36ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 40.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 599326
Weight: 13.08ct
Size: 16 x 16 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 43.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 694114
Weight: 23.85ct
Size: 24.4 x 18.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 71.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 381560
Weight: 6.65ct
Size: 12 x 10 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 3,773.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 334417
Weight: 2.50ct
Size: 8.9 x 7.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 99.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 382310
Weight: 3.11ct (total)
Size: 3.3 mm
Clarity: VS
Content: 20 pcs
Price: $ 164.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 271561
Weight: 9.06ct
Size: 14 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 53.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 528677
Weight: 41.36ct
Size: 27 x 20 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 109.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 334164
Weight: 2.54ct
Size: 10 x 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 100.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 310827
Weight: 3.23ct (total)
Size: 4 mm (calibrated)
Clarity: VS-SI
Content: 12 pcs
Price: $ 172.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 521004
Weight: 83.06ct
Size: 32.6 x 24.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 219.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 558620
Weight: 0.79ct
Size: 5.5 x 4.5 mm
Clarity: VS
Content: 1 pc
Price: $ 47.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 565149
Weight: 0.14ct (total)
Size: 2.6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 306.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 502129
Weight: 2.71ct
Size: 15.7 x 5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 74.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 422373
Weight: 1.42ct
Size: 9.2 x 4.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 81.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 693994
Weight: 1.36ct
Size: 6.4 x 5.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 68.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 693425
Weight: 6.30ct
Size: 12 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 174.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 478008
Weight: 7.07ct
Size: 16 x 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 53.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 422964
Weight: 25.67ct (total)
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 27.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 513650
Weight: 127.45ct
Size: 28.6 x 26.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 2,102.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 394693
Weight: 8.89ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 58.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 562674
Weight: 3.05ct
Size: 13 x 6.9 mm
Clarity: SI
Content: 1 pc
Price: $ 161.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 645615
Weight: 34.24ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 169.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 564801
Weight: 0.86ct
Size: 5.5 x 4.6 mm
Clarity: SI
Content: 1 pc
Price: $ 355.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 304560
Weight: 7.60ct
Size: 12 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 40.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 473005
Weight: 12.90ct
Size: 18.9 x 13.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 115.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 456466
Weight: 6.17ct
Size: 13 x 11 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 47.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 526850
Weight: 2.47ct
Size: 8.8 x 7.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 149.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 447867
Weight: 1.54ct
Size: 6.8 x 5.4 mm
Clarity: VS
Content: 1 pc
Price: $ 815.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 680004
Weight: 21.58ct
Size: 16 x 16 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 207.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 586518
Weight: 27.02ct
Size: 26.7 x 23.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 178.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 384216
Weight: 6.69ct
Size: 13 x 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 946.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 645910
Weight: 11.14ct
Size: 18.9 x 12.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 34.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 619974
Weight: 13.00ct
Size: 16 x 16 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 65.72
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
7
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

Good. I ts very user friendly.

Posted By Shalini in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the quality, package and info of your gems.

Posted By Diana in April, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Appreciated the selection. Jadeite is hard to find under $100. Website has alot of variety.

Posted By Jess in February, 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

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

Posted By VinnyD in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I found what I was looking for...had to look up millimeters to inches. It would be nice to see something, like a quarter, in the pix to show relative size. I plan on buy loose gemstones for every month in the calendar

Posted By TheP in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.

Posted By DNaber in October, 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
Enlarged Gemstone Image