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: 694518
Weight: 24.18ct
Size: 25 x 18 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 26.11
Item in Stock
More Options & Item Details
Add to Cart
ID: 491765
Weight: 96.22ct (total)
Size: 24.3 x 21.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 113.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 458256
Weight: 1.81ct (total)
Size: 4.3 x 3.5 mm
Clarity: VS
Content: 6 pcs
Price: $ 238.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 717015
Weight: 18.84ct
Size: 23.2 x 15.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 35.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 368083
Weight: 3.23ct (total)
Size: 7 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 21.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 620849
Weight: 3.96ct (total)
Size: 12.1 x 6 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 41.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 700175
Weight: 0.35ct
Size: 4.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 21.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 434689
Weight: 2.16ct
Size: 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 79.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 650607
Weight: 0.75ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Price: $ 6.30
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 732834
Weight: 0.50ct
Size: 5 x 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 21.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 431677
Weight: 1.47ct
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 34.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 497278
Weight: 3.22ct (total)
Size: 5.3 mm
Clarity: Translucent
Content: 6 pcs
Price: $ 22.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 605921
Weight: 6.50ct
Size: 18.1 x 10.1 mm
Clarity: VS
Content: 1 pc
Price: $ 60.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 680925
Weight: 1.27ct
Size: 6 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 38.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 606040
Weight: 24.83ct
Size: 23.4 x 16.3 mm
Clarity: VS
Content: 1 pc
Price: $ 208.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 737619
Weight: 6.11ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 36.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 261620
Weight: 3.40ct (total)
Size: 5 x 2.7 mm
Clarity: VS
Content: 20 pcs
Price: $ 179.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 728372
Weight: 24.33ct
Size: 27.2 x 16.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 49.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 610343
Weight: 14.91ct (total)
Size: 19.5 x 12.9 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 19.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 484130
Weight: 3.75ct
Size: 11.2 x 7.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 24.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 724556
Weight: 0.89ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 26.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 498888
Weight: 1.79ct (total)
Size: 5 x 4 mm (calibrated)
Clarity: VS-SI
Content: 4 pcs
Price: $ 236.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 704626
Weight: 1.59ct
Size: 10.6 x 7.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 47.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 541556
Weight: 3.13ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 62.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 724892
Weight: 0.79ct
Size: 5.9 x 3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 33.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 362807
Weight: 33.61ct
Size: 32.6 x 23.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 53.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 639561
Weight: 1.45ct
Size: 11.6 x 5.1 mm
Clarity: VVS
Content: 1 pc
Price: $ 12.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 674838
Weight: 6.29ct
Size: 23.7 x 9.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 10.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 541914
Weight: 2.07ct
Size: 9 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 19.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 531528
Weight: 1.61ct
Size: 6.9 x 6.4 mm
Clarity: VS
Content: 1 pc
Price: $ 127.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 744016
Weight: 26.30ct
Size: 16.6 x 16 mm
Clarity: Transparent
Content: 1 pc
Price: $ 375.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 737626
Weight: 6.62ct
Size: 11 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 33.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 449852
Weight: 2.40ct
Size: 9.9 x 7.7 mm
Clarity: VS
Content: 1 pc
Price: $ 15.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 714410
Weight: 0.69ct
Size: 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 20.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 744502
Weight: 21.63ct (total)
Size: 23.1 x 13 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 108.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 715457
Weight: 0.60ct
Size: 5.2 x 4.8 mm
Clarity: VS
Content: 1 pc
Price: $ 38.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 514086
Weight: 6.37ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 59.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 694260
Weight: 17.67ct
Size: 21.8 x 15.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 53.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 408319
Weight: 9.17ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 712152
Weight: 3.44ct (total)
Size: 9 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 9.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 694721
Weight: 7.27ct
Size: 17.8 x 7.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 218.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 738968
Weight: 0.33ct
Size: 4.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 16.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 517479
Weight: 13.90ct
Size: 17 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 20.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 526320
Weight: 1.32ct
Size: 6.5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 95.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 699269
Weight: 14.10ct
Size: 18.4 x 11.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 16.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 435744
Weight: 8.60ct
Size: 16 x 12 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 28.15
Item in Stock
More Options & Item Details
Add to Cart
ID: 384796
Weight: 7.95ct
Size: 21.5 x 12.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 71.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 503688
Weight: avg. 0.40 ct / each
Size: 6 x 4 mm (calibrated)
Clarity: VS
Price: $ 4.63
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 543757
Weight: 0.88ct (total)
Size: 4.2 x 4.1 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 663011
Weight: 0.98ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 18.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 680683
Weight: 0.96ct
Size: 7 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 28.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 486536
Weight: 17.76ct
Size: 39.3 x 11.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 471969
Weight: 2.67ct
Size: 10 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 352.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 673511
Weight: 29.36ct
Size: 31.5 x 19.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 35.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 642269
Weight: 3.54ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 25.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 492546
Weight: 10.84ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 78.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 733146
Weight: 3.47ct
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 31.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 422377
Weight: 1.27ct
Size: 8.8 x 4.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 73.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 586788
Weight: 2.61ct
Size: 18.2 x 7.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 699006
Weight: 0.60ct
Size: 5.5 x 4.7 mm
Clarity: VS
Content: 1 pc
Price: $ 36.00
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
766
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 -> 10 star ratings

The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.

Posted By Jen in December, 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 surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.

Posted By Watson in May, 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

Overall Rating -> 9 star ratings

The checkout said the my ccv was invalid. i had to use another card.

Posted By Ron in April, 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

Very fast navigation and purchase, which is good. I need to strike while the iron is hot.

Posted By Tim G. in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love Gem Select! When you order what you see is what you get. As soon as you make payment that particular gem is taken off the photo album. That way the one you select is a one of that kind.

Posted By Desertchick in March, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.

Posted By MVK in July, 2025
Source: Bizrate
Enlarged Gemstone Image