Loose Untreated Gemstones: Certified Natural Gems for Collectors and Jewelry, Wholesale Untreated Stones
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Gemtypes in Category:
Actinolite Cat's Eye (54)
Agate (589)
Agate Geode (15)
Alexandrite (21)
Almandine Garnet (475)
Amazonite (259)
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Calcite (71)
Carnelian (21)
Cat's Eye Alexandrite (37)
Cat's Eye Apatite (29)
Cat's Eye Aquamarine (15)
Cat's Eye Beryl (3)
Cat's Eye Moonstone (29)
Cat's Eye Opal (166)
Cat's Eye Scapolite (78)
Cavansite (36)
Chalcedony (203)
Charoite (122)
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Chrysoberyl Cat's Eye (55)
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Clinohumite (30)
Color-Change Diaspore (834)
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Color-Change Sapphire (6)
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Diamond (611)
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Druzy Azurite (13)
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Druzy Variscite (130)
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Fire Opal (124)
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Tiger's Eye Matrix (274)
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Uvarovite Garnet Drusy (80)
Variscite (4)
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Clear All
ID:
301935
Weight:
1.33ct
Size:
10 x 8 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
58.52
Item in Stock
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ID:
486599
Weight:
20.64ct
Size:
30.9 x 9.1 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
13.62
Item in Stock
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ID:
442950
Weight:
3.50ct (total)
Size:
8 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
9.24
Item in Stock
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ID:
554278
Weight:
28.17ct
Size:
23.8 x 15.4 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
34.21
Item in Stock
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ID:
545698
Weight:
2.98ct
Size:
8.9 x 6.5 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
271.42
Item in Stock
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ID:
497209
Weight:
22.20ct
Size:
32.1 x 20.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
15.39
Item in Stock
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ID:
433845
Weight:
3.98ct (total)
Size:
10 x 8 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
26.27
Item in Stock
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ID:
663104
Weight:
2.64ct
Size:
9 x 7 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
15.84
Item in Stock
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ID:
521215
Weight:
27.11ct
Size:
31.6 x 10.3 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
19.68
Item in Stock
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ID:
475187
Weight:
24.61ct (total)
Size:
18 x 12.2 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
58.48
Item in Stock
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ID:
645538
Weight:
13.73ct
Size:
20 x 15 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
67.88
Item in Stock
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ID:
533959
Weight:
1.55ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
14.33
Item in Stock
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ID:
688251
Weight:
0.23ct
Size:
5 x 3.5 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
15.18
Item in Stock
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ID:
700368
Weight:
0.85ct
Size:
6.4 x 4.9 mm
Clarity:
VS
Content:
1 pc
Price:
$
36.62
Item in Stock
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ID:
743404
Weight:
2.13ct
Size:
12 x 6 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
95.85
Item in Stock
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ID:
713653
Weight:
19.35ct
Size:
20 x 15 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
162.54
Item in Stock
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ID:
389422
Weight:
1.19ct
Size:
7.1 x 5.5 mm
Clarity:
VS-SI
Content:
1 pc
Price:
$
78.54
Item in Stock
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ID:
514128
Weight:
7.43ct (total)
Size:
12 x 10 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
69.94
Item in Stock
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ID:
745161
Weight:
2.19ct
Size:
9 x 7 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
27.68
Item in Stock
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ID:
487700
Weight:
5.83ct
Size:
12 x 10 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
54.08
Item in Stock
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ID:
612254
Weight:
1.25ct
Size:
6.4 x 5.9 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
8.26
Item in Stock
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ID:
647296
Weight:
29.83ct
Size:
44 x 19.9 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
35.80
Item in Stock
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ID:
350915
Weight:
3.82ct (total)
Size:
3.6 x 3.6 mm
Clarity:
VS-SI
Content:
15 pcs
Price:
$
35.29
Item in Stock
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ID:
742818
Weight:
2.71ct
Size:
9.3 x 8.7 mm
Clarity:
VVS
Content:
1 pc
Price:
$
406.50
Item in Stock
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ID:
717929
Weight:
1.10ct (total)
Size:
5.1 x 4.2 mm
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
33.00
Item in Stock
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ID:
718988
Weight:
0.66ct
Size:
5.1 x 4.2 mm
Clarity:
VVS
Content:
1 pc
Price:
$
11.88
Item in Stock
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ID:
544832
Weight:
0.94ct
Size:
5.9 x 4.8 mm
Clarity:
VS
Content:
1 pc
Price:
$
38.24
Item in Stock
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ID:
401451
Weight:
32.77ct
Size:
21.7 x 16.4 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
64.90
Item in Stock
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ID:
437129
Weight:
3.77ct (total)
Size:
8 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
7.48
Item in Stock
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ID:
691681
Weight:
0.75ct
Size:
12.3 x 5.3 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
40.50
Item in Stock
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ID:
392399
Weight:
7.15ct (total)
Size:
11 x 9 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
47.20
Item in Stock
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ID:
500209
Weight:
3.47ct (total)
Size:
4 x 4 mm (calibrated)
Clarity:
VVS-VS
Content:
8 pcs
Price:
$
32.06
Item in Stock
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ID:
511219
Weight:
4.21ct
Size:
11 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
55.57
Item in Stock
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ID:
596697
Weight:
4.35ct
Size:
12.3 x 10.4 mm
Clarity:
VS
Content:
1 pc
Price:
$
34.45
Item in Stock
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ID:
712863
Weight:
2.30ct
Size:
10 x 7 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
6.13
Item in Stock
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ID:
526875
Weight:
3.62ct (total)
Size:
9 x 7 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
26.18
Item in Stock
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ID:
565675
Weight:
0.87ct
Size:
6 x 4 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
19.80
Item in Stock
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ID:
498854
Weight:
2.40ct (total)
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
82.68
Item in Stock
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ID:
715414
Weight:
0.44ct
Size:
6 x 4 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
27.98
Item in Stock
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ID:
662691
Weight:
1.56ct
Size:
7 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
37.44
Item in Stock
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ID:
687082
Weight:
14.24ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
17.09
Item in Stock
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ID:
363145
Weight:
37.63ct
Size:
29.3 x 20.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
74.52
Item in Stock
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ID:
699111
Weight:
3.04ct
Size:
11 x 9 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
25.54
Item in Stock
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ID:
387393
Weight:
4.47ct (total)
Size:
4.6 x 4.6 mm
Clarity:
VVS-VS
Content:
10 pcs
Price:
$
29.51
Item in Stock
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ID:
480651
Weight:
4.75ct (total)
Size:
9 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
33.86
Item in Stock
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ID:
418270
Weight:
6.44ct
Size:
14.4 x 10.5 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
12.76
Item in Stock
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ID:
725847
Weight:
0.72ct
Size:
6 x 6 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
6.91
Item in Stock
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ID:
498108
Weight:
26.36ct (total)
Size:
19.9 x 14.2 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
36.18
Item in Stock
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ID:
685673
Weight:
0.94ct
Size:
5.5 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
17.30
Item in Stock
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ID:
740690
Weight:
0.07ct
Size:
4 x 2 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
293.12
Item in Stock
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ID:
325998
Weight:
1.84ct
Size:
8.1 x 7.6 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
6.56
Item in Stock
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ID:
550508
Weight:
5.22ct (total)
Size:
10 x 8 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
48.23
Item in Stock
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ID:
548528
Weight:
1.64ct (total)
Size:
8 x 6 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
541.20
Item in Stock
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ID:
371225
Weight:
20.10ct (total)
Size:
16 x 12 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
26.53
Item in Stock
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ID:
475876
Weight:
4.52ct
Size:
15 x 10 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
41.76
Item in Stock
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ID:
533879
Weight:
3.40ct (total)
Size:
8 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
28.56
Item in Stock
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ID:
708639
Weight:
3.01ct
Size:
9 x 7 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
62.16
Item in Stock
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ID:
562148
Weight:
4.28ct
Size:
11 x 9.5 mm
Clarity:
VS-SI
Content:
1 pc
Price:
$
225.98
Item in Stock
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ID:
491797
Weight:
14.56ct (total)
Size:
18.3 x 9.2 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
13.98
Item in Stock
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ID:
604504
Weight:
1.00ct
Size:
7 x 7 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
9.24
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 have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.
Posted By DNaber in October, 2025
Source: Bizrate
Overall Rating -> 10
My experience was done with ease
Posted By Barb in October, 2025
Source: Bizrate
Overall Rating -> 10
Good selection, using for custom jewlery for my wife.
Posted By Smitty in June, 2025
Source: Bizrate
Overall Rating -> 9
Very easy to navigate with a great selection.
Posted By Bar181 in August, 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 -> 8
Good prices
Posted By TRM in October, 2025
Source: Bizrate
Overall Rating -> 10
Found a beautiful opal at a great price. I was not disappointed when it arrived. Even better in person.
Posted By Fried Rice in August, 2025
Source: Bizrate
Overall Rating -> 10
I purchased from you before and I have never been disappointed. I always received what I expected and your products are very nice.
Posted By MVK in July, 2025
Source: Bizrate
Overall Rating -> 9
It was a good experience looking for and finding a nice amethyst stone
Posted By N/a in May, 2025
Source: Bizrate