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: 685285
Weight: 14.65ct
Size: 19 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 21.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 556703
Weight: 3.35ct (total)
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 28.03
Item in Stock
More Options & Item Details
Add to Cart
ID: 563602
Weight: 0.60ct
Size: 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 36.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 747679
Weight: 1.78ct
Size: 8.2 x 6.8 mm
Clarity: VS
Content: 1 pc
Price: $ 249.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 606014
Weight: 7.57ct
Size: 16 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 99.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 683012
Weight: 2.54ct
Size: 8.5 x 6.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 15.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 503105
Weight: 1.99ct
Size: 10 x 7 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 15.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 567165
Weight: 4.02ct
Size: 10 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 12.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 655930
Weight: 1.55ct
Size: 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 37.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 698779
Weight: 0.93ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 714814
Weight: 0.43ct
Size: 4.3 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 12.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 693203
Weight: 34.68ct
Size: 27.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 454142
Weight: 1.31ct
Size: 11.9 x 4.9 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 55.33
Item in Stock
More Options & Item Details
Add to Cart
ID: 548657
Weight: 1.24ct
Size: 6.5 x 5.5 mm
Clarity: VS
Content: 1 pc
Price: $ 104.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 736684
Weight: 9.25ct
Size: 16 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 13.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 408649
Weight: 10.91ct
Size: 17.7 x 14.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 45.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 501522
Weight: 10.46ct
Size: 17 x 17 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 43.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 693429
Weight: 9.79ct
Size: 14.3 x 11.2 mm
Clarity: VS
Content: 1 pc
Price: $ 324.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 605569
Weight: 25.74ct
Size: 20.5 x 17.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 219.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 691254
Weight: 0.39ct
Size: 4.3 x 4.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 32.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 386695
Weight: 5.06ct
Size: 17.1 x 9.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 45.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 720883
Weight: 1.54ct
Size: 8 x 6 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 12.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 609091
Weight: 1.96ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 64.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 725564
Weight: 2.41ct (total)
Size: 6.9 x 6 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 95.46
Item in Stock
More Options & Item Details
Add to Cart
ID: 737101
Weight: 14.09ct
Size: 22.6 x 15.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 13.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 657296
Weight: 0.99ct
Size: 6 x 5.7 mm
Clarity: Transparent
Content: 1 pc
Price: $ 4.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 459948
Weight: 4.55ct
Size: 15 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 42.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 732446
Weight: 0.75ct
Size: 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 18.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 463968
Weight: 5.85ct
Size: 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 11.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 712050
Weight: 58.47ct (total)
Size: 25.6 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 155.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 532365
Weight: 8.00ct
Size: 13.5 x 11.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 58.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 552958
Weight: 1.70ct
Size: 8.2 x 6.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 10.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 428600
Weight: 3.70ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 9.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 554051
Weight: 0.85ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 6.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 545055
Weight: 1.27ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: SI
Content: 2 pcs
Price: $ 33.53
Item in Stock
More Options & Item Details
Add to Cart
ID: 408071
Weight: 8.22ct
Size: 13 x 13 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 19.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 725885
Weight: 1.52ct (total)
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 2 pcs
Price: $ 14.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 727928
Weight: 2.28ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 5.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 744806
Weight: 1.82ct
Size: 10.6 x 8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 9.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 459988
Weight: 3.44ct
Size: 13 x 9 mm (calibrated)
Clarity: VVS
Price: $ 31.79
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 714109
Weight: 0.30ct
Size: 4 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 9.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 526549
Weight: 3.82ct
Size: 8.4 x 7.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 5.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 567757
Weight: 3.82ct
Size: 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 11.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 427967
Weight: 3.02ct (total)
Size: 8 mm (calibrated)
Clarity: VS
Content: 2 pcs
Price: $ 7.97
Item in Stock
More Options & Item Details
Add to Cart
ID: 399653
Weight: 3.54ct
Size: 9 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 223.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 719615
Weight: 0.95ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 644435
Weight: 1.70ct
Size: 8.3 x 6.8 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 643794
Weight: 1.61ct
Size: 7.6 x 6.1 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 38.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 414381
Weight: 9.16ct
Size: 15.6 x 12.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 80.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 539856
Weight: 1.16ct
Size: 6 x 6 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 23.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 725439
Weight: 0.52ct
Size: 12.9 x 2.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 21.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 688823
Weight: 4.48ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 24.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 704999
Weight: 25.04ct
Size: 39.4 x 9.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 6.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 479686
Weight: 2.69ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 20.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 655965
Weight: 12.55ct
Size: 18 x 13 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 19.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 384188
Weight: 21.22ct (total)
Size: 16 x 12 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 84.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 410761
Weight: 5.41ct
Size: 12 x 10 mm (calibrated)
Clarity: Transparent
Price: $ 35.71
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 519921
Weight: 1.42ct
Size: 10.4 x 6.3 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 131.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 684802
Weight: 0.94ct (total)
Size: 4.7 x 4.6 mm
Clarity: VS
Content: 2 pcs
Price: $ 9.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 471913
Weight: 6.65ct
Size: 12.6 x 10 mm
Clarity: Opaque
Content: 1 pc
Price: $ 26.34
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
107
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

went well

Posted By Doug in May, 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

Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.

Posted By Sal in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.

Posted By JD 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

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

I could see the actual gem I was buying

Posted By Bugs in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well

Posted By Marti in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Everything was great, website user friendly, quality amazing, communication amazing, delivery amazing, everything was as expected, they done what they said they would, overall experience was amazing.

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