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: 742845
Weight: 1.73ct
Size: 7.5 x 6.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 72.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 693478
Weight: 9.26ct
Size: 15.3 x 11.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 33.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 712407
Weight: 0.95ct
Size: 10 x 5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 2.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 491217
Weight: 5.56ct
Size: 10 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 16.37
Item in Stock
More Options & Item Details
Add to Cart
ID: 410036
Weight: 4.65ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 30.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 712227
Weight: 7.13ct (total)
Size: 14 x 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 19.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 724292
Weight: 2.96ct (total)
Size: 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 28.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 454007
Weight: 1.24ct
Size: 9.4 x 4.2 mm
Clarity: VVS
Content: 1 pc
Price: $ 52.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 695046
Weight: 15.56ct
Size: 18.9 x 17.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 8.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 706467
Weight: 6.40ct
Size: 12.4 x 11 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 557721
Weight: 3.33ct
Size: 12 x 10 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.19
Item in Stock
More Options & Item Details
Add to Cart
ID: 527300
Weight: avg. 0.48 ct / each
Size: 5 x 5 mm (calibrated)
Clarity: VVS-VS
Price: $ 7.90
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 695584
Weight: 0.36ct
Size: 4.5 x 3.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 12.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 560426
Weight: 1.98ct
Size: 8.3 x 7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 44.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 451222
Weight: 1.56ct (total)
Size: 5 x 5 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 14.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 510636
Weight: 0.73ct
Size: 7.3 x 5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 41.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 455380
Weight: 1.49ct
Size: 10 x 5.2 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 13.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 465640
Weight: 4.59ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 40.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 566207
Weight: 1.02ct
Size: 6.3 x 4.1 mm
Clarity: VS
Content: 1 pc
Price: $ 23.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 394828
Weight: 7.34ct
Size: 12 x 12 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 48.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 471371
Weight: 21.04ct (total)
Size: 20.7 x 12.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 27.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 512178
Weight: 1.03ct
Size: 8.2 x 3.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 93.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 458604
Weight: 1.48ct (total)
Size: 4.6 x 3.7 mm
Clarity: VS
Content: 4 pcs
Price: $ 195.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 727954
Weight: 1.22ct
Size: 6.6 x 5.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 7.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 407239
Weight: 2.71ct (total)
Size: 4 mm (calibrated)
Clarity: VS
Content: 7 pcs
Price: $ 107.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 417909
Weight: 10.75ct
Size: 14 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 25.55
Item in Stock
More Options & Item Details
Add to Cart
ID: 367010
Weight: 7.86ct
Size: 14.6 x 9.5 mm
Clarity: VS
Content: 1 pc
Price: $ 53.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 473833
Weight: 10.67ct
Size: 18 x 13 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 28.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 678013
Weight: 0.23ct
Size: 2.9 x 2.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 138.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 673473
Weight: 15.33ct
Size: 16.8 x 14.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 91.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 645220
Weight: 1.96ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 4.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 418427
Weight: 9.17ct
Size: 16.3 x 11.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 18.17
Item in Stock
More Options & Item Details
Add to Cart
ID: 662626
Weight: 35.30ct (total)
Size: 31.2 x 14.3 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 25.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 714764
Weight: 5.60ct
Size: 11.2 x 9.4 mm
Clarity: VS
Content: 1 pc
Price: $ 302.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 656722
Weight: 2.43ct
Size: 9 x 7 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 9.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 357596
Weight: 3.82ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 10 pcs
Price: $ 25.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 711137
Weight: 18.58ct
Size: 18 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 156.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 608153
Weight: 9.85ct (total)
Size: 12 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 91.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 680800
Weight: 1.25ct
Size: 7 x 5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 37.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 398527
Weight: 3.28ct (total)
Size: 9 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 21.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 454394
Weight: 0.62ct
Size: 10.6 x 3.7 mm
Clarity: VVS
Content: 1 pc
Price: $ 26.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 496477
Weight: 1.97ct
Size: 8.5 x 7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 41.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 713956
Weight: 1.60ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 13.44
Item in Stock
More Options & Item Details
Add to Cart
ID: 431670
Weight: 1.78ct
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 42.29
Item in Stock
More Options & Item Details
Add to Cart
ID: 447350
Weight: 36.86ct (total)
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 72.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 521025
Weight: 7.32ct
Size: 15.2 x 9.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 175.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 705000
Weight: 25.14ct
Size: 36.8 x 9.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 6.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 660186
Weight: 1.78ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 14.95
Item in Stock
More Options & Item Details
Add to Cart
ID: 570043
Weight: 2.23ct
Size: 7 x 7 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 52.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 517807
Weight: 1.86ct
Size: 8 x 6.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 734726
Weight: 2.92ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS-VS
Price: $ 102.20
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 727390
Weight: 1.12ct
Size: 9 x 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 33.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 477363
Weight: 4.40ct
Size: 11 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 34.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 447608
Weight: 43.90ct
Size: 16.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 115.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 462775
Weight: 4.38ct
Size: 11 mm (calibrated)
Clarity: VVS-VS
Price: $ 34.69
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 536854
Weight: 0.98ct
Size: 5.9 x 4.2 mm
Clarity: VS
Content: 1 pc
Price: $ 40.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 427540
Weight: 2.29ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 15.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 466175
Weight: 3.35ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 35.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 660570
Weight: 2.03ct
Size: 7 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 4.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 736567
Weight: 7.82ct
Size: 17.2 x 11.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 11.03
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
596
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

Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.

Posted By Darkstar in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Very large selection from affordable to high end I will be coming back to shop again!

Posted By GreenGator in August, 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

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

Love, and have always loved, your website.

Posted By Aberabic 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

All these questions, and I don't have to give any blood. What a Deal... I absolutely enjoy the Gem Select emails every month. This one today was special. I always say, I'll know it when I see it. This stone today was the One. Odd and Intriguing. Thank You So Much for all that you do.

Posted By G.W. in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Filters need to be improved but rest of website is great

Posted By Rock hound in December, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

Always a good quality stone. Priced fairly and shipped promptly. Answers emails quickly

Posted By Ron T in November, 2025
Source: Bizrate
Enlarged Gemstone Image