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: 481632
Weight: 21.02ct
Size: 18.7 x 16.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 30.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 711840
Weight: 19.90ct
Size: 20 x 15 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 39.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 453134
Weight: 5.37ct (total)
Size: 7 x 5 mm (calibrated)
Clarity: VVS-VS
Content: 6 pcs
Price: $ 49.62
Item in Stock
More Options & Item Details
Add to Cart
ID: 691948
Weight: 6.74ct
Size: 13 x 11 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 8.41
Item in Stock
More Options & Item Details
Add to Cart
ID: 585886
Weight: 41.84ct
Size: 35.8 x 26.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 24.85
Item in Stock
More Options & Item Details
Add to Cart
ID: 394381
Weight: 7.07ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 46.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 718267
Weight: 1.01ct
Size: 5.9 x 4.8 mm
Clarity: VVS
Content: 1 pc
Price: $ 30.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 392296
Weight: 7.38ct (total)
Size: 11 x 9 mm (calibrated)
Clarity: Transparent
Content: 2 pcs
Price: $ 48.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 694765
Weight: 9.22ct
Size: 13 x 9 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 276.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 544254
Weight: 1.46ct
Size: 8 x 8 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 10.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 464436
Weight: 2.41ct (total)
Size: 4 x 4 mm (calibrated)
Clarity: VS
Content: 6 pcs
Price: $ 22.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 396608
Weight: 1.37ct
Size: 6.8 x 5.3 mm
Clarity: VS
Content: 1 pc
Price: $ 86.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 711223
Weight: 2.04ct
Size: 8.3 x 6.9 mm
Clarity: VS
Content: 1 pc
Price: $ 48.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 660025
Weight: 1.75ct
Size: 6.3 x 6.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 4.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 639209
Weight: 2.60ct
Size: 8.5 x 6.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 12.89
Item in Stock
More Options & Item Details
Add to Cart
ID: 704645
Weight: 1.48ct
Size: 10 x 8 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 44.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 699249
Weight: 2.10ct
Size: 7 x 6.6 mm
Clarity: Transparent
Content: 1 pc
Price: $ 12.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 726067
Weight: 0.64ct
Size: 6 x 6 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 6.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 328628
Weight: 19.62ct
Size: 18 x 13 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 31.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 546890
Weight: 3.23ct
Size: 8.5 x 8.5 mm
Clarity: VS
Content: 1 pc
Price: $ 25.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 689796
Weight: 4.33ct (total)
Size: 10 x 8 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 23.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 673452
Weight: 1.44ct (total)
Size: 5.3 mm
Clarity: VS-SI
Content: 2 pcs
Price: $ 34.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 505891
Weight: 529.63ct
Size: 50.1 x 43.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 1,048.66
Item in Stock
More Options & Item Details
Add to Cart
ID: 458350
Weight: 1.88ct (total)
Size: 5 x 4 mm (calibrated)
Clarity: VS
Content: 4 pcs
Price: $ 248.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 418266
Weight: 5.14ct
Size: 13.6 x 9.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 10.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 511214
Weight: 4.69ct
Size: 11 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 61.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 394030
Weight: 50.96ct
Size: 34.2 x 33.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 67.27
Item in Stock
More Options & Item Details
Add to Cart
ID: 700957
Weight: 0.64ct
Size: 5.9 x 3.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 27.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 363804
Weight: 34.46ct
Size: 32.6 x 22.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 55.04
Item in Stock
More Options & Item Details
Add to Cart
ID: 465247
Weight: 4.79ct
Size: 14 x 10 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 41.93
Item in Stock
More Options & Item Details
Add to Cart
ID: 497078
Weight: 2.63ct
Size: 9.3 x 7.6 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 47.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 454479
Weight: 0.87ct
Size: 10.4 x 4.4 mm
Clarity: VS
Content: 1 pc
Price: $ 36.74
Item in Stock
More Options & Item Details
Add to Cart
ID: 442221
Weight: 1.90ct
Size: 7 mm (calibrated)
Clarity: VVS
Content: 1 pc
Price: $ 50.16
Item in Stock
More Options & Item Details
Add to Cart
ID: 712699
Weight: 4.78ct
Size: 12 x 10 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 12.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 699761
Weight: 16.65ct
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 15.98
Item in Stock
More Options & Item Details
Add to Cart
ID: 731029
Weight: 20.11ct (total)
Size: 20.9 x 14.4 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 13.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 606478
Weight: 29.58ct (total)
Size: 22.4 x 15.1 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 46.07
Item in Stock
More Options & Item Details
Add to Cart
ID: 390902
Weight: 9.13ct (total)
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 2 pcs
Price: $ 18.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 418223
Weight: 12.83ct (total)
Size: 16.5 x 11.3 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 25.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 691764
Weight: 1.08ct
Size: 9.1 x 7.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 58.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 712100
Weight: 3.91ct
Size: 14 x 7 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 10.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 735810
Weight: 36.45ct
Size: 39.5 x 22.4 mm
Clarity: Translucent
Content: 1 pc
Price: $ 30.18
Item in Stock
More Options & Item Details
Add to Cart
ID: 692661
Weight: 13.48ct
Size: 16 mm (calibrated)
Clarity: VVS-VS
Content: 1 pc
Price: $ 113.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 712763
Weight: 6.50ct (total)
Size: 14 x 7 mm (calibrated)
Clarity: Translucent
Content: 2 pcs
Price: $ 17.32
Item in Stock
More Options & Item Details
Add to Cart
ID: 638584
Weight: 2.57ct
Size: 8.2 x 7.2 mm
Clarity: Translucent
Content: 1 pc
Price: $ 15.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 697790
Weight: 23.17ct
Size: 36 x 8.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 2.78
Item in Stock
More Options & Item Details
Add to Cart
ID: 706478
Weight: 9.32ct
Size: 14.8 x 12.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 19.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 564398
Weight: 2.98ct
Size: 10 x 10 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 19.67
Item in Stock
More Options & Item Details
Add to Cart
ID: 421928
Weight: 2.59ct (total)
Size: 6.7 x 4.9 mm
Clarity: VVS-VS
Content: 4 pcs
Price: $ 136.75
Item in Stock
More Options & Item Details
Add to Cart
ID: 700076
Weight: 10.81ct
Size: 17.4 x 12.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 9.08
Item in Stock
More Options & Item Details
Add to Cart
ID: 667712
Weight: 3.10ct (total)
Size: 8.8 x 6.7 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 63.58
Item in Stock
More Options & Item Details
Add to Cart
ID: 668846
Weight: 5.00ct
Size: 13 x 11 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 150.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 714837
Weight: 15.68ct
Size: 19 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 40.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 433877
Weight: 16.38ct
Size: 23.9 x 22.6 mm
Clarity: Opaque
Content: 1 pc
Price: $ 237.84
Item in Stock
More Options & Item Details
Add to Cart
ID: 673208
Weight: 1.86ct
Size: 8 x 6 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 44.64
Item in Stock
More Options & Item Details
Add to Cart
ID: 664273
Weight: 1.82ct
Size: 8 x 7.1 mm
Clarity: Translucent
Content: 1 pc
Price: $ 13.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 699042
Weight: 0.88ct
Size: 7 x 5 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 7.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 694209
Weight: 0.83ct
Size: 10.9 x 3.4 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 24.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 712067
Weight: 1.23ct
Size: 6 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 24.56
Item in Stock
More Options & Item Details
Add to Cart
ID: 382948
Weight: 11.54ct
Size: 19.8 x 13.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 45.70
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
87
Choose Page
1 - 774

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 selection is good as are the prices

Posted By Old man in August, 2025
Source: Bizrate

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 -> 10 star ratings

Love, and have always loved, your website.

Posted By Aberabic in July, 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 -> 9 star ratings

It is a good experience, it is easy to view the item, and easy to check out.

Posted By Neo in November, 2024
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy to navigate

Posted By GemGod in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

First time so this is an experiment! Shopping is so fun on this site, though!

Posted By Gem Delight in March, 2025
Source: Bizrate

Overall Rating -> 9 star ratings

I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.

Posted By Jezzi in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!

Posted By Britnee Rose in September, 2025
Source: Bizrate
Enlarged Gemstone Image