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: 268772
Weight: 16.89ct
Size: 17 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 55.73
Item in Stock
More Options & Item Details
Add to Cart
ID: 407937
Weight: 5.11ct
Size: 14.5 x 7.9 mm
Clarity: VS
Content: 1 pc
Price: $ 280.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 446520
Weight: 7.85ct
Size: 15 x 10.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 25.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 608364
Weight: 2.91ct (total)
Size: 8 x 6 mm (calibrated)
Clarity: SI
Content: 2 pcs
Price: $ 60.82
Item in Stock
More Options & Item Details
Add to Cart
ID: 350666
Weight: 19.85ct
Size: 30 x 22 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 104.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 673891
Weight: 6.76ct
Size: 14 x 10 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 105.35
Item in Stock
More Options & Item Details
Add to Cart
ID: 692370
Weight: 44.58ct
Size: 30.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 24.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 314397
Weight: 24.58ct
Size: 25.6 x 16.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 81.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 447905
Weight: 123.42ct
Size: 65.1 x 33.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 162.91
Item in Stock
More Options & Item Details
Add to Cart
ID: 530666
Weight: 1.68ct
Size: 6.3 x 6 mm
Clarity: VS
Content: 1 pc
Price: $ 133.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 387572
Weight: 7.58ct
Size: 12 x 12 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 488.57
Item in Stock
More Options & Item Details
Add to Cart
ID: 626169
Weight: 0.99ct
Size: 7.7 x 4.9 mm
Clarity: Transparent
Content: 1 pc
Price: $ 3.92
Item in Stock
More Options & Item Details
Add to Cart
ID: 354763
Weight: 382.95ct
Size: 44.4 x 42.5 mm
Clarity: Transparent/Translucent
Content: 1 pc
Price: $ 765.90
Item in Stock
More Options & Item Details
Add to Cart
ID: 554213
Weight: 1.01ct
Size: 8 x 5.5 mm
Clarity: VS-SI
Content: 1 pc
Price: $ 22.22
Item in Stock
More Options & Item Details
Add to Cart
ID: 409216
Weight: 11.09ct
Size: 16.7 x 13 mm
Clarity: VS
Content: 1 pc
Price: $ 377.39
Item in Stock
More Options & Item Details
Add to Cart
ID: 407938
Weight: 5.10ct
Size: 14.7 x 8.3 mm
Clarity: VS
Content: 1 pc
Price: $ 279.71
Item in Stock
More Options & Item Details
Add to Cart
ID: 499555
Weight: 44.70ct
Size: 33.5 x 21.7 mm
Clarity: Translucent
Content: 1 pc
Price: $ 41.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 521011
Weight: 89.42ct
Size: 31.8 x 26.8 mm
Clarity: Transparent
Content: 1 pc
Price: $ 236.06
Item in Stock
More Options & Item Details
Add to Cart
ID: 669278
Weight: 25.93ct (total)
Size: 21.8 x 10.4 mm
Clarity: Transparent
Content: 2 pcs
Price: $ 560.09
Item in Stock
More Options & Item Details
Add to Cart
ID: 505527
Weight: 6.82ct
Size: 12 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 85.34
Item in Stock
More Options & Item Details
Add to Cart
ID: 599838
Weight: 6.45ct
Size: 14.2 x 10.2 mm
Clarity: Transparent
Price: $ 28.87
Item in Stock
More Options & Item Details
Select pcs
Add to Cart
ID: 477935
Weight: 19.00ct
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 1 pc
Price: $ 53.42
Item in Stock
More Options & Item Details
Add to Cart
ID: 619368
Weight: 10.70ct
Size: 19.9 x 13.4 mm
Clarity: Transparent
Content: 1 pc
Price: $ 54.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 609893
Weight: 8.43ct
Size: 18.4 x 10.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 86.23
Item in Stock
More Options & Item Details
Add to Cart
ID: 627639
Weight: 21.82ct
Size: 20.7 x 16.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 201.61
Item in Stock
More Options & Item Details
Add to Cart
ID: 573438
Weight: 0.84ct
Size: 8 mm (calibrated)
Clarity: Translucent
Content: 1 pc
Price: $ 33.26
Item in Stock
More Options & Item Details
Add to Cart
ID: 378644
Weight: 1.54ct
Size: 7.5 mm (calibrated)
Clarity: SI
Content: 1 pc
Price: $ 4,404.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 484392
Weight: 5.89ct
Size: 13.7 x 10.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 38.88
Item in Stock
More Options & Item Details
Add to Cart
ID: 382972
Weight: 36.94ct
Size: 27.9 x 22.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 73.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 502630
Weight: 19.57ct
Size: 27.7 x 9.6 mm
Clarity: VVS-VS
Content: 1 pc
Price: $ 516.65
Item in Stock
More Options & Item Details
Add to Cart
ID: 384489
Weight: 6.29ct
Size: 13.7 x 8.3 mm
Clarity: VVS
Content: 1 pc
Price: $ 3,522.40
Item in Stock
More Options & Item Details
Add to Cart
ID: 696564
Weight: 48.09ct
Size: 33.7 x 24.4 mm
Clarity: Opaque
Content: 1 pc
Price: $ 72.14
Item in Stock
More Options & Item Details
Add to Cart
ID: 363842
Weight: 52.74ct
Size: 36.5 x 25.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 44.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 521453
Weight: 32.95ct
Size: 34.4 x 17.3 mm
Clarity: Transparent
Content: 1 pc
Price: $ 260.96
Item in Stock
More Options & Item Details
Add to Cart
ID: 634610
Weight: 22.12ct
Size: 27.5 x 12.8 mm
Clarity: Opaque
Content: 1 pc
Price: $ 185.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 392385
Weight: 8.20ct
Size: 12 x 12 mm (calibrated)
Clarity: Transparent
Content: 1 pc
Price: $ 54.12
Item in Stock
More Options & Item Details
Add to Cart
ID: 375266
Weight: 2.92ct
Size: 8.4 x 6.7 mm
Clarity: VS
Content: 1 pc
Price: $ 102.20
Item in Stock
More Options & Item Details
Add to Cart
ID: 510930
Weight: 41.05ct (total)
Size: 20 x 15.7 mm
Clarity: Opaque
Content: 2 pcs
Price: $ 73.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 602718
Weight: 1.72ct
Size: 7 mm (calibrated)
Clarity: SI-I1
Content: 1 pc
Price: $ 56.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 582246
Weight: 18.42ct
Size: 24.7 x 16.5 mm
Clarity: Translucent
Content: 1 pc
Price: $ 132.76
Item in Stock
More Options & Item Details
Add to Cart
ID: 359622
Weight: 36.79ct
Size: 22 x 16.2 mm
Clarity: Opaque
Content: 1 pc
Price: $ 97.13
Item in Stock
More Options & Item Details
Add to Cart
ID: 511703
Weight: 1.37ct
Size: 8.1 x 5.2 mm
Clarity: VS
Content: 1 pc
Price: $ 81.38
Item in Stock
More Options & Item Details
Add to Cart
ID: 415530
Weight: 7.65ct
Size: 16 x 8.4 mm
Clarity: VS
Content: 1 pc
Price: $ 1,836.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 645831
Weight: 9.73ct
Size: 29.8 x 9.3 mm
Clarity: Opaque
Content: 1 pc
Price: $ 30.36
Item in Stock
More Options & Item Details
Add to Cart
ID: 564633
Weight: 0.25ct
Size: 4 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 458.24
Item in Stock
More Options & Item Details
Add to Cart
ID: 449386
Weight: 2.60ct
Size: 21.1 x 4 mm
Clarity: VVS
Content: 1 pc
Price: $ 85.80
Item in Stock
More Options & Item Details
Add to Cart
ID: 518170
Weight: 13.71ct
Size: 21 x 14.3 mm
Clarity: Translucent
Content: 1 pc
Price: $ 52.30
Item in Stock
More Options & Item Details
Add to Cart
ID: 447456
Weight: 77.78ct (total)
Size: 14 mm (calibrated)
Clarity: Opaque
Content: 4 pcs
Price: $ 154.01
Item in Stock
More Options & Item Details
Add to Cart
ID: 333540
Weight: 5.25ct
Size: 12 x 10 mm (calibrated)
Clarity: VS-SI
Content: 1 pc
Price: $ 630.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 693714
Weight: 2.61ct
Size: 10.8 x 6.5 mm
Clarity: Opaque
Content: 1 pc
Price: $ 7.83
Item in Stock
More Options & Item Details
Add to Cart
ID: 700189
Weight: 0.55ct
Size: 6.1 x 4.2 mm
Clarity: SI
Content: 1 pc
Price: $ 33.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 449390
Weight: 2.47ct
Size: 22.6 x 3.6 mm
Clarity: VVS
Content: 1 pc
Price: $ 97.81
Item in Stock
More Options & Item Details
Add to Cart
ID: 628411
Weight: 16.81ct
Size: 28.8 x 13.1 mm
Clarity: Opaque
Content: 1 pc
Price: $ 100.86
Item in Stock
More Options & Item Details
Add to Cart
ID: 417191
Weight: 24.08ct
Size: 17.4 x 14.5 mm
Clarity: VVS
Content: 1 pc
Price: $ 4,816.00
Item in Stock
More Options & Item Details
Add to Cart
ID: 592874
Weight: 13.86ct (total)
Size: 18.4 x 11.8 mm
Clarity: Translucent
Content: 2 pcs
Price: $ 36.59
Item in Stock
More Options & Item Details
Add to Cart
ID: 645982
Weight: 19.53ct
Size: 23.8 x 17.9 mm
Clarity: Opaque
Content: 1 pc
Price: $ 60.94
Item in Stock
More Options & Item Details
Add to Cart
ID: 695450
Weight: 73.43ct
Size: 52.1 x 34.7 mm
Clarity: Opaque
Content: 1 pc
Price: $ 70.49
Item in Stock
More Options & Item Details
Add to Cart
ID: 469487
Weight: 24.98ct
Size: 21.3 x 14.6 mm
Clarity: Translucent
Content: 1 pc
Price: $ 52.10
Item in Stock
More Options & Item Details
Add to Cart
ID: 668517
Weight: 31.32ct
Size: 25 x 15 mm
Clarity: Opaque
Content: 1 pc
Price: $ 156.60
Item in Stock
More Options & Item Details
Add to Cart
ID: 644359
Weight: 1.50ct
Size: 7 x 7 mm (calibrated)
Clarity: VS
Content: 1 pc
Price: $ 64.91
Item in Stock
More Options & Item Details
Add to Cart
1 2 3
...
12
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

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

It was my second time so I understand what it is to do

Posted By Ibie in February, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I really liked the email, and the link that help return me to the site. I didnt have access to my card info while checking out and I had to put my phone away so I lost the tab. Fortunately, since I did give an email- they sent me a link that brought me back to where I was. Greatly appreciated

Posted By Jag in January, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.

Posted By Happy Customer in June, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

It was easy and to the point

Posted By Victorius in May, 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

It's always a pleasure doing business with Gem Select. Outstanding products ant very reasonable prices. Thank You One and All.

Posted By G.W. or Bakyow in July, 2025
Source: Bizrate

Overall Rating -> 10 star ratings

I love the ability to choose from many options of shapes, gemstone type, color, and so forth. It is fun!

Posted By Geof in November, 2025
Source: Bizrate

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
Enlarged Gemstone Image