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: 619125
Weight: 2.09ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 57.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 553133
Weight: 2.29ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 51.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 499196
Weight: 2.78ct
Size: 12 x 5.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 550.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 523722
Weight: 33.71ct
Size: 32.6 x 22.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 222.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 695012
Weight: 86.48ct
Size: 43.7 x 36.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 83.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 565164
Weight: 0.14ct (total)
Size: 2.7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 306.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 441221
Weight: 11.64ct
Size: 14.1 x 10.8 mm
Clarity: VS
Content: 1 pc
Price: $ 307.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 349459
Weight: 1.17ct
Size: 7.5 x 5.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 162.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 573982
Weight: 1.73ct
Size: 8 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 38.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 694531
Weight: 18.23ct
Size: 21.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 16.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 685584
Weight: 42.68ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 42.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 407296
Weight: 8.20ct
Size: 15.2 x 11.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 448.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 346661
Weight: 5.55ct
Size: 16.5 x 7.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 3,729.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 666476
Weight: 14.25ct
Size: 21.8 x 16.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 58.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 494138
Weight: 7.86ct
Size: 15 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 17.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 481435
Weight: 2.14ct (total)
Size: 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 51.25
Item in Stock
More Options & Item Details
Add to Cart
ID: 675355
Weight: 169.73ct
Size: 37.3 x 30.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 4,169.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 264265
Weight: 40.56ct
Size: 22 x 17.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 12,995.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 602276
Weight: 1.46ct
Size: 7 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 48.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 559175
Weight: 2.06ct (total)
Size: 7.3 x 5 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 7.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 693851
Weight: 1.48ct
Size: 6.3 x 5.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 88.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 386669
Weight: 9.50ct
Size: 12.5 x 10.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 362.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 366376
Weight: 1.07ct
Size: 7.4 x 5.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 150.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 690766
Weight: 1.32ct
Size: 7 x 5 mm (calibrated)
Clarity: I1
Content: 1 pc
Price: $ 79.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 660001
Weight: 1.60ct
Size: 7.7 x 6.4 mm
Clarity: VS
Content: 1 pc
Price: $ 38.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 385187
Weight: 8.39ct
Size: 23.7 x 11.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 75.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 533010
Weight: 12.50ct
Size: 14 x 14 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 499434
Weight: 1.71ct
Size: 7.3 x 5.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 6.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 544799
Weight: 3.19ct
Size: 12.1 x 5.8 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 242.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 674917
Weight: 18.52ct
Size: 22.5 x 19.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 16.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 595006
Weight: 11.29ct (total)
Size: 15 x 9.1 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 149.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 334346
Weight: 2.65ct
Size: 10 x 8 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 104.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 513071
Weight: 37.60ct
Size: 45 x 24 mm
Clarity: Opaque
Content: 1 pc
Price: $ 162.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 693806
Weight: 23.10ct
Size: 22.5 x 10.8 mm
Clarity: VS
Content: 1 pc
Price: $ 765.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 422081
Weight: 1.35ct
Size: 9.5 x 5.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 77.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 546443
Weight: avg. 0.65 ct / each
Size: 7 x 5 mm (calibrated)
Clarity: VS
Price: $ 3.57
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 378643
Weight: 1.85ct
Size: 7.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 5,772.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 492381
Weight: 7.59ct
Size: 15.6 x 13.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 23.79
Item in Stock
More Options & Item Details
Add to Cart
ID: 415864
Weight: 0.99ct
Size: 7 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 653.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 596896
Weight: 6.59ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 78.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 679797
Weight: 44.60ct
Size: 24.8 x 19.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 356.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 696780
Weight: 5.84ct
Size: 17 x 17 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 560.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 564603
Weight: 0.31ct
Size: 4.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 619.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 645790
Weight: 23.11ct
Size: 21.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 526454
Weight: avg. 12.53 ct / each
Size: 12 mm (calibrated)
Clarity: Opaque
Price: $ 15.16
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 554175
Weight: 9.24ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 70.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 639274
Weight: 81.18ct
Size: 27.8 x 25.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 681.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 694259
Weight: 24.49ct
Size: 21 x 20.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 73.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 614758
Weight: 11.46ct
Size: 16 x 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 627.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 695139
Weight: 98.16ct
Size: 53.6 x 36.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 94.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 450370
Weight: 15.37ct
Size: 23.7 x 9.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 3,074.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 693545
Weight: 43.66ct
Size: 43.3 x 22.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 552032
Weight: 11.09ct
Size: 17 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 29.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 471438
Weight: 149.36ct
Size: 51.1 x 31.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 164.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 558338
Weight: 4.74ct
Size: 12 x 8 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 298.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 546196
Weight: 1.13ct
Size: 6.5 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 80.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 599325
Weight: 12.91ct
Size: 16 x 16 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 35.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 392984
Weight: 3.50ct (total)
Size: 6.7 x 6.6 mm
Clarity: VS
Content: 2 pcs
Price: $ 92.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 255621
Weight: 1.41ct (total)
Size: 3.5 mm (calibrated)
Clarity: VS
Content: 9 pcs
Price: $ 235.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 662732
Weight: 1.56ct
Size: 7.8 x 6.3 mm
Clarity: VS
Content: 1 pc
Price: $ 37.44
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
19
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

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

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

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

Loved everything. High quality, quick shipping, and authentication included.

Posted By Chris in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

this site is awesome. I was able to look at the products think about purchasing and come back and find the same products. With the amount of inventory gem select has. Its awesome to be able to filter the way that they allow you too.

Posted By Tommyp in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very professional site

Posted By JR in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

The stones are very nice.

Posted By Mvk in August, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I was able to find what I was looking for

Posted By Lincolnpremier in January, 2025
Source: Bizrate
Enlarged Gemstone Image