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: 411816
Weight: 2.90ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 133.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 712689
Weight: 0.94ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 18.77
Item in Stock
More Options & Item Details
Add to Cart
ID: 360804
Weight: 19.85ct
Size: 22.3 x 12.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 42.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 356964
Weight: 3.88ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: VVS-VS
Content: 10 pcs
Price: $ 25.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 670650
Weight: 0.34ct
Size: 3.8 x 3.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 12.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 614331
Weight: 8.15ct
Size: 14.4 x 10.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 282.72
Item in Stock
More Options & Item Details
Add to Cart
ID: 558229
Weight: 0.91ct (total)
Size: 4.2 x 4.1 mm
Clarity: VS
Content: 2 pcs
Price: $ 7.21
Item in Stock
More Options & Item Details
Add to Cart
ID: 706445
Weight: 8.51ct
Size: 12.8 x 12.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 17.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 495959
Weight: 0.83ct
Size: 5.7 mm
Clarity: VS
Content: 1 pc
Price: $ 46.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 552290
Weight: 6.51ct
Size: 16.8 x 11.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 17.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 464283
Weight: 4.07ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 10 pcs
Price: $ 37.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 360803
Weight: 16.86ct
Size: 19.1 x 11.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.28
Item in Stock
More Options & Item Details
Add to Cart
ID: 724856
Weight: 27.55ct
Size: 24.4 x 16.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 99.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 479106
Weight: 2.66ct (total)
Size: 10.1 x 5.2 mm
Clarity: VVS-VS
Content: 2 pcs
Price: $ 28.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 391081
Weight: 44.74ct (total)
Size: 32.1 x 14.6 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 53.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 672684
Weight: 1.17ct
Size: 9 x 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 28.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 730100
Weight: 2.31ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 20.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 465514
Weight: 3.51ct
Size: 11 x 9 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 28.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 724413
Weight: 0.53ct
Size: 6 x 4 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 15.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 553594
Weight: 7.96ct (total)
Size: 9 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 42.02
Item in Stock
More Options & Item Details
Add to Cart
ID: 385869
Weight: 2.92ct (total)
Size: 4.6 x 4.5 mm
Clarity: VVS-VS
Content: 6 pcs
Price: $ 19.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 726872
Weight: 0.70ct
Size: 6 x 4 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 12.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 715673
Weight: 0.58ct
Size: 9.2 x 2.7 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 36.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 700726
Weight: 5.91ct
Size: 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 5.68
Item in Stock
More Options & Item Details
Add to Cart
ID: 468834
Weight: 1.80ct (total)
Size: 3.3 mm
Clarity: VS-SI
Content: 10 pcs
Price: $ 95.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 717918
Weight: 1.90ct (total)
Size: 5.9 x 4.9 mm
Clarity: VVS
Content: 2 pcs
Price: $ 57.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 605804
Weight: 25.96ct
Size: 22.8 x 18.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 239.87
Item in Stock
More Options & Item Details
Add to Cart
ID: 709369
Weight: 0.87ct
Size: 10 x 4.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 7.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 716364
Weight: 3.15ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 30.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 386579
Weight: 9.07ct (total)
Size: 16.9 x 7.4 mm
Clarity: Translucent
Content: 4 pcs
Price: $ 80.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 433849
Weight: 5.56ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 2 pcs
Price: $ 36.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 348774
Weight: 44.28ct
Size: 29.7 x 24.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 58.45
Item in Stock
More Options & Item Details
Add to Cart
ID: 435204
Weight: 45.22ct
Size: 33.4 x 22.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.69
Item in Stock
More Options & Item Details
Add to Cart
ID: 460835
Weight: 2.31ct
Size: 9 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 21.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 701949
Weight: 10.02ct
Size: 15 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 60.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 673229
Weight: 1.48ct
Size: 9 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 35.52
Item in Stock
More Options & Item Details
Add to Cart
ID: 744245
Weight: 15.06ct
Size: 18.9 x 12.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 59.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 659997
Weight: 1.58ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 37.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 396018
Weight: 11.12ct
Size: 14 x 14 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 23.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 738963
Weight: 0.41ct
Size: 5.5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 20.50
Item in Stock
More Options & Item Details
Add to Cart
ID: 551619
Weight: 0.88ct
Size: 7 x 5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 3.31
Item in Stock
More Options & Item Details
Add to Cart
ID: 471279
Weight: 35.89ct
Size: 32.1 x 23 mm
Clarity: Opaque
Content: 1 pc
Price: $ 37.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 687167
Weight: 4.24ct
Size: 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 5.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 552997
Weight: 1.15ct
Size: 8 x 5.7 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 25.99
Item in Stock
More Options & Item Details
Add to Cart
ID: 395317
Weight: 10.56ct
Size: 14 x 14 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 69.70
Item in Stock
More Options & Item Details
Add to Cart
ID: 654587
Weight: 2.78ct
Size: 10 x 8 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 23.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 491655
Weight: 57.73ct (total)
Size: 18.2 x 14.5 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 67.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 699079
Weight: 0.94ct
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 7.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 704365
Weight: 0.99ct
Size: 5.9 x 4.9 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 32.54
Item in Stock
More Options & Item Details
Add to Cart
ID: 683047
Weight: 0.14ct
Size: 3.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 80.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 676055
Weight: 6.16ct
Size: 14.5 x 13.1 mm
Clarity: Transparent
Content: 1 pc
Price: $ 36.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 370081
Weight: 1.58ct
Size: 17.2 x 3.5 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 40.63
Item in Stock
More Options & Item Details
Add to Cart
ID: 710483
Weight: 9.85ct
Size: 15 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 313.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 726012
Weight: 0.91ct (total)
Size: 6 x 4 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 36.05
Item in Stock
More Options & Item Details
Add to Cart
ID: 564202
Weight: 0.95ct
Size: 7.6 x 5.8 mm
Clarity: Translucent
Content: 1 pc
Price: $ 14.47
Item in Stock
More Options & Item Details
Add to Cart
ID: 368575
Weight: 1.73ct
Size: 7.5 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 11.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 730418
Weight: 6.20ct
Size: 14 x 10 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 595.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 721504
Weight: 30.70ct
Size: 34.2 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 36.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 648331
Weight: 40.32ct
Size: 33.3 x 25.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 48.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 482173
Weight: 2.39ct
Size: 8.5 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 17.23
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
689
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

All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.

Posted By Bob D in December, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

A pleasant experience and many choices to choose from

Posted By Krackenking in November, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I would recommend gem select yo everyone Fast service and no problems

Posted By Steve in March, 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 -> 9 star ratings

Will know more once order received

Posted By Jim in September, 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

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

Love, and have always loved, your website.

Posted By Aberabic in July, 2025
Source: Bizrate

Overall Rating -> 8 star ratings

First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.

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