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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Ametrine (163)
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Apatite (264)
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Aventurine (130)
Axinite (9)
Beryl (639)
Black Opal (6)
Bloodstone (190)
Boulder Opal (271)
Calcite (71)
Carnelian (21)
Cat's Eye Alexandrite (36)
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)
Chocolate Opal (76)
Chrome Diopside (101)
Chrysoberyl (93)
Chrysoberyl Cat's Eye (55)
Chrysocolla (50)
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Citrine (4362)
Clinohumite (30)
Color-Change Diaspore (834)
Color-Change Fluorite (47)
Color-Change Garnet (190)
Color-Change Sapphire (4)
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Dendritic Agate (199)
Diamond (611)
Druzy Amethyst (3)
Druzy Azurite (13)
Druzy Citrine (44)
Druzy Variscite (130)
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Fire Agate (309)
Fire Opal (124)
Fluorite (160)
Fossil Coral (316)
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Tiger's Eye Matrix (274)
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ID:
540022
Weight:
0.81ct (total)
Size:
6 x 4 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
8.56
Item in Stock
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ID:
392805
Weight:
7.58ct
Size:
14 x 10 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
50.03
Item in Stock
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ID:
413738
Weight:
13.49ct
Size:
15 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
445.18
Item in Stock
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ID:
398802
Weight:
3.38ct (total)
Size:
8 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
31.24
Item in Stock
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ID:
438830
Weight:
2.51ct (total)
Size:
5.4 x 3.5 mm
Clarity:
VS
Content:
6 pcs
Price:
$
49.20
Item in Stock
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ID:
532235
Weight:
12.58ct
Size:
15.4 x 12.6 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
91.33
Item in Stock
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ID:
479006
Weight:
2.09ct (total)
Size:
9.9 x 5.1 mm
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
22.07
Item in Stock
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ID:
692915
Weight:
24.90ct
Size:
20 x 15 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
209.16
Item in Stock
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ID:
498850
Weight:
1.20ct
Size:
8.6 x 6.8 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
37.58
Item in Stock
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ID:
467839
Weight:
5.44ct (total)
Size:
3 mm (calibrated)
Clarity:
Transparent
Content:
30 pcs
Price:
$
35.90
Item in Stock
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ID:
531870
Weight:
3.28ct
Size:
11 x 9 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
17.32
Item in Stock
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ID:
699155
Weight:
16.07ct
Size:
21.4 x 14.6 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
19.28
Item in Stock
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ID:
664641
Weight:
1.81ct
Size:
8 x 6 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
39.10
Item in Stock
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ID:
743355
Weight:
1.64ct
Size:
7.2 x 6.3 mm
Clarity:
VVS
Content:
1 pc
Price:
$
229.60
Item in Stock
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ID:
669500
Weight:
16.99ct
Size:
21.8 x 14.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
50.98
Item in Stock
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ID:
582788
Weight:
1.22ct
Size:
8.4 x 6.3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
64.42
Item in Stock
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ID:
475183
Weight:
24.60ct (total)
Size:
20.9 x 14 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
58.45
Item in Stock
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ID:
679056
Weight:
19.46ct
Size:
24.8 x 15.9 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
70.52
Item in Stock
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ID:
701760
Weight:
25.38ct
Size:
19.1 x 13.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
152.28
Item in Stock
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ID:
601903
Weight:
6.45ct
Size:
17.1 x 12 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
31.33
Item in Stock
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ID:
666113
Weight:
10.22ct
Size:
21.7 x 12.6 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
35.05
Item in Stock
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ID:
642901
Weight:
0.97ct
Size:
7 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
45.40
Item in Stock
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ID:
678017
Weight:
0.16ct
Size:
2.7 x 2.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
96.00
Item in Stock
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ID:
566436
Weight:
1.36ct
Size:
6.7 x 4.8 mm
Clarity:
VS
Content:
1 pc
Price:
$
30.96
Item in Stock
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ID:
600442
Weight:
37.78ct
Size:
32.2 x 20 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
28.42
Item in Stock
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ID:
341938
Weight:
4.78ct (total)
Size:
4.2 x 4.2 mm
Clarity:
VVS-VS
Content:
10 pcs
Price:
$
46.37
Item in Stock
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ID:
383610
Weight:
36.60ct
Size:
30 x 22 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
65.88
Item in Stock
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ID:
453133
Weight:
4.61ct (total)
Size:
7 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
6 pcs
Price:
$
42.60
Item in Stock
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ID:
692693
Weight:
34.32ct
Size:
28.9 x 20.8 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
20.59
Item in Stock
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ID:
722772
Weight:
1.07ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
32.10
Item in Stock
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ID:
746261
Weight:
0.97ct
Size:
7 x 5 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
31.04
Item in Stock
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ID:
484340
Weight:
4.90ct (total)
Size:
7.7 x 5.9 mm
Clarity:
VS
Content:
4 pcs
Price:
$
64.68
Item in Stock
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ID:
700698
Weight:
1.11ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
10.66
Item in Stock
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ID:
694522
Weight:
12.93ct
Size:
15 x 15 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
108.61
Item in Stock
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ID:
655972
Weight:
11.47ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
17.89
Item in Stock
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ID:
521622
Weight:
38.13ct
Size:
35.5 x 11.6 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
27.68
Item in Stock
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ID:
516573
Weight:
1.43ct
Size:
7.6 x 6.3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
28.32
Item in Stock
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ID:
349037
Weight:
30.93ct
Size:
30.9 x 19.8 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
40.82
Item in Stock
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ID:
431731
Weight:
1.44ct
Size:
6.6 x 6.4 mm
Clarity:
VS
Content:
1 pc
Price:
$
34.21
Item in Stock
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ID:
498889
Weight:
1.81ct (total)
Size:
5.2 x 4.1 mm
Clarity:
VS-SI
Content:
4 pcs
Price:
$
238.92
Item in Stock
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ID:
721833
Weight:
9.98ct
Size:
15.1 x 13.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
11.98
Item in Stock
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ID:
712663
Weight:
3.97ct
Size:
12 x 10 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
57.17
Item in Stock
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ID:
672431
Weight:
1.77ct
Size:
8 x 6.7 mm
Clarity:
VS
Content:
1 pc
Price:
$
42.48
Item in Stock
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ID:
640649
Weight:
1.83ct
Size:
7.3 x 6.6 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
12.08
Item in Stock
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ID:
731001
Weight:
15.17ct
Size:
20 x 16.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
18.56
Item in Stock
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ID:
485603
Weight:
30.01ct (total)
Size:
14 x 14 mm (calibrated)
Clarity:
Translucent
Content:
4 pcs
Price:
$
36.01
Item in Stock
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ID:
427688
Weight:
2.39ct (total)
Size:
6 x 4 mm (calibrated)
Clarity:
VVS-VS
Content:
6 pcs
Price:
$
15.78
Item in Stock
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ID:
594599
Weight:
8.17ct
Size:
15.6 x 11.5 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
58.82
Item in Stock
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ID:
573269
Weight:
avg. 0.26 ct / each
Size:
6.1 x 3.1 mm
Clarity:
VS
Price:
$
2.25
Item in Stock
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pcs
ID:
620784
Weight:
3.93ct (total)
Size:
12 x 6 mm
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
41.50
Item in Stock
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ID:
492967
Weight:
4.01ct
Size:
14 x 10 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
29.00
Item in Stock
More Options & Item Details
ID:
253173
Weight:
0.61ct
Size:
7.1 x 3.4 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
84.55
Item in Stock
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ID:
700383
Weight:
0.77ct
Size:
5.2 mm
Clarity:
SI
Content:
1 pc
Price:
$
46.20
Item in Stock
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ID:
745462
Weight:
60.40ct
Size:
25.3 x 15.3 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
127.44
Item in Stock
More Options & Item Details
ID:
695047
Weight:
12.50ct
Size:
15.9 x 12.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
6.90
Item in Stock
More Options & Item Details
ID:
475925
Weight:
3.19ct
Size:
10 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
22.40
Item in Stock
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ID:
409701
Weight:
10.67ct (total)
Size:
14 x 10 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
50.84
Item in Stock
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ID:
746659
Weight:
17.11ct
Size:
20 x 15 mm (calibrated)
Clarity:
IF
Content:
1 pc
Price:
$
136.88
Item in Stock
More Options & Item Details
ID:
596683
Weight:
37.10ct
Size:
24.3 x 19.9 mm
Clarity:
VS
Content:
1 pc
Price:
$
327.13
Item in Stock
More Options & Item Details
ID:
494905
Weight:
4.32ct
Size:
12 x 10 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
31.07
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 -> 7
Okay thank you.
Posted By Bepc61 in March, 2025
Source: Bizrate
Overall Rating -> 10
Always find more niche sizes/shapes as my unconventional designs require from this website. Recommending to fellow designers in the creative atmosphere on the usual, specially due to the quality and certification of gems.
Posted By Sina in April, 2025
Source: Bizrate
Overall Rating -> 10
love these guys been ordering since 2000 maybe
Posted By JHT in April, 2025
Source: Bizrate
Overall Rating -> 9
Been using them for years! Very satisfied with the products.
Posted By PI SC in May, 2025
Source: Bizrate
Overall Rating -> 10
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
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
The stones are very nice.
Posted By Mvk in August, 2025
Source: Bizrate
Overall Rating -> 9
the gems were smaller than I thought but I was at fault for not reading the complete discrimination
Posted By Tim in May, 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