Loose Untreated Gemstones: Certified Natural Gems for Collectors and Jewelry, Wholesale Untreated Stones
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Actinolite Cat's Eye (54)
Agate (589)
Agate Geode (15)
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Cat's Eye Apatite (29)
Cat's Eye Aquamarine (15)
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Clear All
ID:
747430
Weight:
1.38ct
Size:
6.9 x 6.4 mm
Clarity:
VS-SI
Content:
1 pc
Price:
$
248.40
Item in Stock
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ID:
712102
Weight:
2.31ct
Size:
12 x 6 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
6.16
Item in Stock
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ID:
744752
Weight:
0.83ct
Size:
6.6 x 4.7 mm
Clarity:
VS
Content:
1 pc
Price:
$
83.00
Item in Stock
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ID:
475782
Weight:
4.66ct
Size:
15 x 10 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
43.06
Item in Stock
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ID:
485048
Weight:
29.96ct
Size:
43.2 x 14.7 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
65.64
Item in Stock
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ID:
552528
Weight:
0.92ct
Size:
7 x 7 mm (calibrated)
Clarity:
VS
Price:
$
8.50
Item in Stock
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Select
1
2
3
4
pcs 0 in Cart
ID:
715094
Weight:
3.84ct (total)
Size:
7.5 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
9.95
Item in Stock
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ID:
737147
Weight:
3.55ct
Size:
10.9 x 8.1 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
17.75
Item in Stock
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ID:
540928
Weight:
3.80ct
Size:
12 x 10 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
25.08
Item in Stock
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ID:
692414
Weight:
46.00ct
Size:
30.4 x 23 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
27.60
Item in Stock
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ID:
341896
Weight:
4.22ct (total)
Size:
4 x 4 mm (calibrated)
Clarity:
VVS-VS
Content:
10 pcs
Price:
$
40.94
Item in Stock
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ID:
445970
Weight:
5.67ct
Size:
14 x 10 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
15.05
Item in Stock
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ID:
725931
Weight:
1.00ct
Size:
6.3 x 5.4 mm
Clarity:
VS
Content:
1 pc
Price:
$
84.90
Item in Stock
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ID:
490705
Weight:
5.38ct
Size:
14 x 10 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
39.06
Item in Stock
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ID:
704856
Weight:
1.43ct
Size:
11.2 x 8.5 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
42.90
Item in Stock
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ID:
398675
Weight:
3.98ct (total)
Size:
8 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
26.27
Item in Stock
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ID:
656187
Weight:
3.48ct
Size:
10 x 10 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
5.42
Item in Stock
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ID:
469750
Weight:
22.65ct
Size:
17.1 x 14.2 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
47.24
Item in Stock
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ID:
612885
Weight:
1.88ct (total)
Size:
7 x 5 mm (calibrated)
Clarity:
SI
Content:
2 pcs
Price:
$
62.04
Item in Stock
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ID:
721583
Weight:
36.40ct
Size:
30.1 x 18.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
43.68
Item in Stock
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ID:
596477
Weight:
16.24ct
Size:
21.8 x 14.1 mm
Clarity:
VVS
Content:
1 pc
Price:
$
143.20
Item in Stock
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ID:
682123
Weight:
9.08ct
Size:
16.3 x 13.1 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
87.17
Item in Stock
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ID:
528820
Weight:
36.50ct
Size:
25 x 20.9 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
96.36
Item in Stock
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ID:
639860
Weight:
0.25ct
Size:
5 x 3 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
12.00
Item in Stock
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ID:
291479
Weight:
11.91ct
Size:
23.8 x 10 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
43.24
Item in Stock
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ID:
698783
Weight:
0.95ct
Size:
7 x 5 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
7.98
Item in Stock
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ID:
711500
Weight:
1.71ct
Size:
9 x 6 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
4.56
Item in Stock
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ID:
407962
Weight:
6.41ct
Size:
12 mm (calibrated)
Clarity:
VVS-VS
Price:
$
15.14
Item in Stock
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Select
1
2
3
pcs 0 in Cart
ID:
724987
Weight:
0.98ct
Size:
8.3 x 3.6 mm
Clarity:
VVS
Content:
1 pc
Price:
$
41.16
Item in Stock
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ID:
448216
Weight:
3.83ct (total)
Size:
8 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
20.22
Item in Stock
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ID:
744804
Weight:
2.53ct
Size:
11.8 x 8.4 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
12.65
Item in Stock
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ID:
711728
Weight:
16.56ct
Size:
20 x 15 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
29.81
Item in Stock
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ID:
727951
Weight:
1.08ct
Size:
5.9 x 5.4 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
6.48
Item in Stock
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ID:
674108
Weight:
16.25ct
Size:
21.3 x 12.2 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
292.50
Item in Stock
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ID:
737906
Weight:
0.78ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
39.00
Item in Stock
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ID:
375914
Weight:
4.98ct (total)
Size:
9 x 7 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
38.58
Item in Stock
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ID:
744493
Weight:
1.13ct
Size:
7.2 x 5.7 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
47.46
Item in Stock
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ID:
699119
Weight:
2.79ct
Size:
11 x 9 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
23.44
Item in Stock
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ID:
572114
Weight:
1.15ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
36.43
Item in Stock
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ID:
685602
Weight:
0.09ct (total)
Size:
2.1 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
31.50
Item in Stock
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ID:
646850
Weight:
0.91ct
Size:
6.9 x 4.8 mm
Clarity:
SI
Content:
1 pc
Price:
$
24.02
Item in Stock
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ID:
630775
Weight:
13.23ct
Size:
18 x 11.4 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
70.01
Item in Stock
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ID:
639277
Weight:
73.50ct
Size:
28.1 x 24.3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
607.91
Item in Stock
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ID:
721864
Weight:
36.37ct
Size:
25.2 x 20.3 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
43.64
Item in Stock
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ID:
599863
Weight:
23.89ct
Size:
28.9 x 16.8 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
17.98
Item in Stock
More Options & Item Details
ID:
693375
Weight:
32.76ct
Size:
36 x 11.1 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
11.80
Item in Stock
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ID:
677913
Weight:
avg. 0.10 ct / each
Size:
2.3 x 2.2 mm
Clarity:
Opaque
Price:
$
50.86
Item in Stock
More Options & Item Details
Select
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
pcs
ID:
433853
Weight:
4.05ct (total)
Size:
10 x 8 mm (calibrated)
Clarity:
VVS
Content:
2 pcs
Price:
$
26.74
Item in Stock
More Options & Item Details
ID:
708492
Weight:
1.47ct
Size:
7 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
30.36
Item in Stock
More Options & Item Details
ID:
517834
Weight:
1.86ct
Size:
9 x 7 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
171.86
Item in Stock
More Options & Item Details
ID:
624998
Weight:
2.33ct
Size:
9 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
22.92
Item in Stock
More Options & Item Details
ID:
554915
Weight:
1.14ct
Size:
7.8 x 5.7 mm
Clarity:
SI
Content:
1 pc
Price:
$
30.10
Item in Stock
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ID:
712480
Weight:
21.36ct (total)
Size:
16 x 12 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
56.90
Item in Stock
More Options & Item Details
ID:
698545
Weight:
0.76ct
Size:
5.9 x 5.3 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
4.56
Item in Stock
More Options & Item Details
ID:
682435
Weight:
14.45ct
Size:
15.9 x 14.1 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
86.70
Item in Stock
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ID:
721832
Weight:
9.89ct
Size:
14 x 12 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
11.87
Item in Stock
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ID:
365576
Weight:
2.06ct
Size:
7.7 x 6.7 mm
Clarity:
VS
Content:
1 pc
Price:
$
75.52
Item in Stock
More Options & Item Details
ID:
694720
Weight:
1.55ct
Size:
5.9 x 5.5 mm
Clarity:
VVS
Content:
1 pc
Price:
$
46.50
Item in Stock
More Options & Item Details
ID:
694487
Weight:
35.20ct
Size:
33.8 x 18.9 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
38.02
Item in Stock
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ID:
484320
Weight:
31.48ct
Size:
27.1 x 18.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
207.77
Item in Stock
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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
I like the site, it's easy to navigate. There are sometimes items I'm looking for that aren't there, but mostly I can find what I need.
Posted By Nate in March, 2025
Source: Bizrate
Overall Rating -> 10
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
I would recommend gem select yo everyone
Fast service and no problems
Posted By Steve in March, 2025
Source: Bizrate
Overall Rating -> 10
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
My experience was done with ease
Posted By Barb in October, 2025
Source: Bizrate
Overall Rating -> 10
love the site, the experience and the products.
Posted By Ckingpots in July, 2025
Source: Bizrate
Overall Rating -> 10
Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10
Posted By KT in September, 2025
Source: Bizrate
Overall Rating -> 10
I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.
Posted By Razormane in April, 2025
Source: Bizrate
Overall Rating -> 8
Good prices
Posted By TRM in October, 2025
Source: Bizrate