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)
Amethyst (2866)
Amethyst Geode Slice (69)
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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)
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Cavansite (36)
Chalcedony (203)
Charoite (122)
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Chrysoberyl Cat's Eye (55)
Chrysocolla (50)
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Clinohumite (30)
Color-Change Diaspore (834)
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Color-Change Garnet (190)
Color-Change Sapphire (4)
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Diamond (611)
Druzy Amethyst (3)
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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Tsavorite Garnet (175)
Turquoise (90)
Uvarovite Garnet Drusy (80)
Variscite (4)
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Clear All
ID:
685285
Weight:
14.65ct
Size:
19 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
21.10
Item in Stock
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ID:
556703
Weight:
3.35ct (total)
Size:
7 x 7 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
28.03
Item in Stock
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ID:
563602
Weight:
0.60ct
Size:
5 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
36.58
Item in Stock
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ID:
747679
Weight:
1.78ct
Size:
8.2 x 6.8 mm
Clarity:
VS
Content:
1 pc
Price:
$
249.20
Item in Stock
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ID:
606014
Weight:
7.57ct
Size:
16 x 12 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
99.92
Item in Stock
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ID:
683012
Weight:
2.54ct
Size:
8.5 x 6.6 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
15.05
Item in Stock
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ID:
503105
Weight:
1.99ct
Size:
10 x 7 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
15.76
Item in Stock
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ID:
567165
Weight:
4.02ct
Size:
10 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
12.16
Item in Stock
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ID:
655930
Weight:
1.55ct
Size:
8 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
37.20
Item in Stock
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ID:
698779
Weight:
0.93ct
Size:
7 x 5 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
7.81
Item in Stock
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ID:
714814
Weight:
0.43ct
Size:
4.3 mm
Clarity:
VS-SI
Content:
1 pc
Price:
$
12.90
Item in Stock
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ID:
693203
Weight:
34.68ct
Size:
27.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
19.14
Item in Stock
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ID:
454142
Weight:
1.31ct
Size:
11.9 x 4.9 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
55.33
Item in Stock
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ID:
548657
Weight:
1.24ct
Size:
6.5 x 5.5 mm
Clarity:
VS
Content:
1 pc
Price:
$
104.16
Item in Stock
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ID:
736684
Weight:
9.25ct
Size:
16 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
13.04
Item in Stock
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ID:
408649
Weight:
10.91ct
Size:
17.7 x 14.1 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
45.82
Item in Stock
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ID:
501522
Weight:
10.46ct
Size:
17 x 17 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
43.91
Item in Stock
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ID:
693429
Weight:
9.79ct
Size:
14.3 x 11.2 mm
Clarity:
VS
Content:
1 pc
Price:
$
324.60
Item in Stock
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ID:
605569
Weight:
25.74ct
Size:
20.5 x 17.1 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
219.91
Item in Stock
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ID:
691254
Weight:
0.39ct
Size:
4.3 x 4.3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
32.76
Item in Stock
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ID:
386695
Weight:
5.06ct
Size:
17.1 x 9.5 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
45.01
Item in Stock
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ID:
720883
Weight:
1.54ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
12.94
Item in Stock
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ID:
609091
Weight:
1.96ct (total)
Size:
8 x 6 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
64.68
Item in Stock
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ID:
725564
Weight:
2.41ct (total)
Size:
6.9 x 6 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
95.46
Item in Stock
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ID:
737101
Weight:
14.09ct
Size:
22.6 x 15.3 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
13.24
Item in Stock
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ID:
657296
Weight:
0.99ct
Size:
6 x 5.7 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
4.75
Item in Stock
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ID:
459948
Weight:
4.55ct
Size:
15 x 10 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
42.05
Item in Stock
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ID:
732446
Weight:
0.75ct
Size:
5 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
18.00
Item in Stock
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ID:
463968
Weight:
5.85ct
Size:
12 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
11.59
Item in Stock
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ID:
712050
Weight:
58.47ct (total)
Size:
25.6 mm
Clarity:
Translucent
Content:
2 pcs
Price:
$
155.76
Item in Stock
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ID:
532365
Weight:
8.00ct
Size:
13.5 x 11.2 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
58.08
Item in Stock
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ID:
552958
Weight:
1.70ct
Size:
8.2 x 6.3 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
10.24
Item in Stock
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ID:
428600
Weight:
3.70ct (total)
Size:
8 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
9.77
Item in Stock
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ID:
554051
Weight:
0.85ct (total)
Size:
6 x 4 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
6.73
Item in Stock
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ID:
545055
Weight:
1.27ct (total)
Size:
6 x 4 mm (calibrated)
Clarity:
SI
Content:
2 pcs
Price:
$
33.53
Item in Stock
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ID:
408071
Weight:
8.22ct
Size:
13 x 13 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
19.42
Item in Stock
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ID:
725885
Weight:
1.52ct (total)
Size:
6 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
14.59
Item in Stock
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ID:
727928
Weight:
2.28ct
Size:
10 x 8 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
5.47
Item in Stock
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ID:
744806
Weight:
1.82ct
Size:
10.6 x 8 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
9.10
Item in Stock
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ID:
459988
Weight:
3.44ct
Size:
13 x 9 mm (calibrated)
Clarity:
VVS
Price:
$
31.79
Item in Stock
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Select
1
2
3
pcs 0 in Cart
ID:
714109
Weight:
0.30ct
Size:
4 mm (calibrated)
Clarity:
SI
Content:
1 pc
Price:
$
9.00
Item in Stock
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ID:
526549
Weight:
3.82ct
Size:
8.4 x 7.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
5.54
Item in Stock
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ID:
567757
Weight:
3.82ct
Size:
11 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
11.56
Item in Stock
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ID:
427967
Weight:
3.02ct (total)
Size:
8 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
7.97
Item in Stock
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ID:
399653
Weight:
3.54ct
Size:
9 x 9 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
223.84
Item in Stock
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ID:
719615
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:
644435
Weight:
1.70ct
Size:
8.3 x 6.8 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
40.80
Item in Stock
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ID:
643794
Weight:
1.61ct
Size:
7.6 x 6.1 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
38.64
Item in Stock
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ID:
414381
Weight:
9.16ct
Size:
15.6 x 12.7 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
80.61
Item in Stock
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ID:
539856
Weight:
1.16ct
Size:
6 x 6 mm (calibrated)
Clarity:
VS-SI
Content:
1 pc
Price:
$
23.45
Item in Stock
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ID:
725439
Weight:
0.52ct
Size:
12.9 x 2.3 mm
Clarity:
VVS
Content:
1 pc
Price:
$
21.84
Item in Stock
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ID:
688823
Weight:
4.48ct (total)
Size:
10 x 8 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
24.67
Item in Stock
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ID:
704999
Weight:
25.04ct
Size:
39.4 x 9.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
6.01
Item in Stock
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ID:
479686
Weight:
2.69ct (total)
Size:
4 x 4 mm (calibrated)
Clarity:
VS
Content:
10 pcs
Price:
$
20.71
Item in Stock
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ID:
655965
Weight:
12.55ct
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
19.58
Item in Stock
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ID:
384188
Weight:
21.22ct (total)
Size:
16 x 12 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
84.04
Item in Stock
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ID:
410761
Weight:
5.41ct
Size:
12 x 10 mm (calibrated)
Clarity:
Transparent
Price:
$
35.71
Item in Stock
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ID:
519921
Weight:
1.42ct
Size:
10.4 x 6.3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
131.21
Item in Stock
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ID:
684802
Weight:
0.94ct (total)
Size:
4.7 x 4.6 mm
Clarity:
VS
Content:
2 pcs
Price:
$
9.02
Item in Stock
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ID:
471913
Weight:
6.65ct
Size:
12.6 x 10 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
26.34
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
went well
Posted By Doug in May, 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
Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.
Posted By Sal in July, 2025
Source: Bizrate
Overall Rating -> 10
Would have bought an indigo and selenite, but neither listed. But, you do offer quite a large assortment otherwise.
Posted By JD in July, 2025
Source: Bizrate
Overall Rating -> 10
Very surprised how quick and efficient it was to checkout and pay. Also found exactly what I was looking for no issues.
Posted By Watson in May, 2025
Source: Bizrate
Overall Rating -> 10
Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.
Posted By Darkstar in June, 2025
Source: Bizrate
Overall Rating -> 10
I could see the actual gem I was buying
Posted By Bugs in December, 2025
Source: Bizrate
Overall Rating -> 10
I have purchased stones from gem select in the past and have been very satisfied. I expect to repeat that experience with this purchase as well
Posted By Marti in July, 2025
Source: Bizrate
Overall Rating -> 10
Everything was great, website user friendly, quality amazing, communication amazing, delivery amazing, everything was as expected, they done what they said they would, overall experience was amazing.
Posted By Jac in July, 2025
Source: Bizrate