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: 648735
Weight: 18.97ct
Size: 29.6 x 18.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 10.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 724695
Weight: 1.23ct
Size: 10 x 5 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 36.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 431067
Weight: 3.22ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 76.51
Item in Stock
More Options & Item Details
Add to Cart
ID: 686519
Weight: 0.32ct
Size: 5 x 3 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 419126
Weight: 4.99ct
Size: 13.9 x 11.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 26.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 457290
Weight: 2.06ct
Size: 10.9 x 7.4 mm
Clarity: VS
Content: 1 pc
Price: $ 19.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 688715
Weight: 0.05ct
Size: 2.5 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 29.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 724239
Weight: 20.07ct
Size: 17.4 x 14.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 23.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 398245
Weight: 3.18ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 20.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 499220
Weight: 1.83ct
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 32.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 544309
Weight: 0.72ct
Size: 6.3 x 4.2 mm
Clarity: SI
Content: 1 pc
Price: $ 19.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 326002
Weight: 1.76ct
Size: 8 x 7.1 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 6.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 714455
Weight: 0.73ct
Size: 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 21.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 448370
Weight: 1.39ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 7.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 533712
Weight: 3.10ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 28.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 710148
Weight: 2.04ct
Size: 8 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 36.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 541085
Weight: 1.27ct (total)
Size: 8 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 8.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 446747
Weight: 4.99ct
Size: 13 x 9 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 16.48
Item in Stock
More Options & Item Details
Add to Cart
ID: 687669
Weight: 3.30ct
Size: 10.5 x 8.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 3.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 730330
Weight: 1.43ct
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 240.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 526303
Weight: 1.22ct
Size: 6.7 x 5.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 88.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 575963
Weight: 17.37ct (total)
Size: 20 x 14 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 48.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 673546
Weight: 1.83ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 43.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 715738
Weight: 8.47ct (total)
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 81.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 533351
Weight: 10.14ct
Size: 13 x 13 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 20.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 698537
Weight: 0.80ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 6.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 569244
Weight: 0.94ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 8.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 725851
Weight: 0.73ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 7.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 712096
Weight: 4.98ct
Size: 16 x 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 13.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 434045
Weight: 34.97ct
Size: 30.2 x 18.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 46.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 687749
Weight: 6.70ct
Size: 12 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 8.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 737595
Weight: 4.27ct
Size: 9 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 25.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 532981
Weight: 1.54ct
Size: 8 x 8 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 12.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 745460
Weight: 17.57ct
Size: 18.5 x 9.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 37.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 472335
Weight: 13.38ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 123.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 625165
Weight: 1.12ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 29.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 489145
Weight: 3.09ct (total)
Size: 4.8 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 61.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 485343
Weight: 7.84ct (total)
Size: 10 x 10 mm (calibrated)
Clarity: Translucent
Content: 4 pcs
Price: $ 20.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 647617
Weight: 1.27ct
Size: 7.4 x 5.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 28.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 675181
Weight: 2.58ct
Size: 10 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 21.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 558075
Weight: 3.88ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 29.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 697461
Weight: 0.66ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS
Price: $ 3.96
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 503311
Weight: avg. 0.24 ct / each
Size: 5 x 3 mm (calibrated)
Clarity: VVS-VS
Price: $ 2.63
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 707127
Weight: 2.53ct
Size: 9 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 6.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 565264
Weight: 21.30ct
Size: 27.1 x 14.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 16.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 692973
Weight: 25.96ct
Size: 37.5 x 9.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 485142
Weight: 3.40ct (total)
Size: 10 x 9.5 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 17.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 687581
Weight: 18.54ct (total)
Size: 13 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 54.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 745465
Weight: 17.70ct
Size: 17.4 x 10.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 37.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 420919
Weight: 6.68ct
Size: 13.1 x 11.9 mm
Clarity: Translucent
Content: 1 pc
Price: $ 26.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 719302
Weight: 0.57ct
Size: 5.1 x 3.9 mm
Clarity: VS
Content: 1 pc
Price: $ 8.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 408067
Weight: 2.58ct
Size: 9.7 x 7.3 mm
Clarity: VS
Content: 1 pc
Price: $ 85.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 482520
Weight: 32.16ct
Size: 32.4 x 22.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 23.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 713789
Weight: 0.84ct
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 7.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 717124
Weight: 0.76ct
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 15.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 389590
Weight: 2.74ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 18.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 397510
Weight: 9.38ct
Size: 13 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 61.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 561345
Weight: 0.96ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 8.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 701098
Weight: 0.55ct
Size: 6.4 x 3.7 mm
Clarity: VS
Content: 1 pc
Price: $ 23.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 610076
Weight: 16.49ct
Size: 22.9 x 18.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.67
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
729
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

looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones..

Posted By Steven M. in February, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

It was great!

Posted By Annie in September, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

The purchasing process is fairly quick and straightforward and for me user friendly so it probably took more or less than 3 minutes to purchase and pay for the items. I wish there was a discount offer for multiple items to encourage us buyers to purchase more an incentive and add more sales in your end. Besides that, it's been a great purchasing experience and will continue to shop as I am a repeat customer and have bought from your store many times before. Thank you.

Posted By Emmanuel in October, 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

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

Overall Rating -> 9 star ratings

I wish there were options for jewelry settings

Posted By Tim in May, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Love, and have always loved, your website.

Posted By Aberabic in July, 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

My experience was done with ease

Posted By Barb in October, 2025
Source: Bizrate
Enlarged Gemstone Image