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)
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Amazonite (259)
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Cat's Eye Apatite (29)
Cat's Eye Aquamarine (15)
Cat's Eye Beryl (3)
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Cavansite (36)
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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)
Druzy Amethyst (3)
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Tiger's Eye Matrix (274)
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Uvarovite Garnet Drusy (80)
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Clear All
ID:
688607
Weight:
0.34ct
Size:
3.7 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
8.50
Item in Stock
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ID:
672459
Weight:
2.23ct (total)
Size:
8 x 6 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
53.52
Item in Stock
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ID:
691080
Weight:
0.38ct
Size:
4.3 mm
Clarity:
SI-I1
Content:
1 pc
Price:
$
22.80
Item in Stock
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ID:
717008
Weight:
18.68ct
Size:
27.9 x 15.4 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
35.64
Item in Stock
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ID:
564692
Weight:
21.04ct (total)
Size:
18.6 x 11.7 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
48.05
Item in Stock
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ID:
742953
Weight:
36.54ct
Size:
35.4 x 24.3 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
36.54
Item in Stock
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ID:
464353
Weight:
4.13ct (total)
Size:
4 x 4 mm (calibrated)
Clarity:
VS
Content:
10 pcs
Price:
$
38.16
Item in Stock
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ID:
427573
Weight:
2.56ct (total)
Size:
6 x 4 mm (calibrated)
Clarity:
VVS-VS
Content:
6 pcs
Price:
$
16.90
Item in Stock
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ID:
745978
Weight:
2.65ct
Size:
9 x 7 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
85.60
Item in Stock
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ID:
590261
Weight:
2.52ct
Size:
8.1 x 7.3 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
16.63
Item in Stock
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ID:
700976
Weight:
0.63ct
Size:
4.7 mm
Clarity:
SI
Content:
1 pc
Price:
$
37.80
Item in Stock
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ID:
688999
Weight:
1.18ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
11.33
Item in Stock
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ID:
375991
Weight:
8.41ct (total)
Size:
8.2 x 6.8 mm
Clarity:
Transparent
Content:
4 pcs
Price:
$
65.17
Item in Stock
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ID:
462962
Weight:
4.24ct
Size:
14 x 10 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
33.58
Item in Stock
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ID:
712685
Weight:
1.06ct
Size:
6 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
21.17
Item in Stock
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ID:
681800
Weight:
13.19ct
Size:
19.9 x 11.1 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
126.62
Item in Stock
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ID:
527608
Weight:
4.71ct
Size:
10 x 8 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
34.07
Item in Stock
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ID:
714183
Weight:
0.36ct
Size:
4 mm (calibrated)
Clarity:
SI
Content:
1 pc
Price:
$
10.80
Item in Stock
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ID:
733426
Weight:
3.34ct
Size:
11 x 9 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
30.18
Item in Stock
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ID:
332054
Weight:
5.10ct
Size:
10.5 x 10.3 mm
Clarity:
Transparent/Translucent
Content:
1 pc
Price:
$
16.84
Item in Stock
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ID:
622734
Weight:
0.76ct
Size:
7 x 5 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
14.04
Item in Stock
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ID:
673107
Weight:
0.66ct
Size:
7 x 5 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
15.84
Item in Stock
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ID:
744655
Weight:
2.20ct
Size:
9 x 7 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
99.00
Item in Stock
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ID:
462423
Weight:
3.01ct
Size:
10 x 8 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
19.87
Item in Stock
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ID:
659438
Weight:
9.90ct
Size:
17.9 x 14.9 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
19.80
Item in Stock
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ID:
445370
Weight:
7.15ct
Size:
16.6 x 9.6 mm
Clarity:
VVS
Content:
1 pc
Price:
$
47.20
Item in Stock
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ID:
650436
Weight:
10.21ct
Size:
20.5 x 18.3 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
28.79
Item in Stock
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ID:
636349
Weight:
2.23ct
Size:
8.9 x 7.4 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
10.70
Item in Stock
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ID:
635359
Weight:
1.87ct
Size:
8 x 8 mm (calibrated)
Clarity:
VVS
Price:
$
15.71
Item in Stock
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Select
1
2
3
4
pcs 0 in Cart
ID:
717932
Weight:
1.62ct (total)
Size:
6 x 4 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
48.60
Item in Stock
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ID:
517837
Weight:
1.50ct
Size:
12 x 5.7 mm
Clarity:
VS
Content:
1 pc
Price:
$
138.60
Item in Stock
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ID:
684817
Weight:
25.43ct
Size:
25.1 x 18.8 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
25.33
Item in Stock
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ID:
488335
Weight:
39.13ct
Size:
36.1 x 21.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
25.84
Item in Stock
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ID:
737555
Weight:
8.50ct
Size:
12 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
51.00
Item in Stock
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ID:
674252
Weight:
1.09ct
Size:
9.1 x 6.6 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
45.78
Item in Stock
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ID:
528690
Weight:
1.65ct
Size:
6 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
143.75
Item in Stock
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ID:
715707
Weight:
0.85ct
Size:
5.9 x 5.1 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
54.06
Item in Stock
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ID:
471695
Weight:
1.67ct (total)
Size:
5 x 4 mm (calibrated)
Clarity:
VS
Content:
4 pcs
Price:
$
220.44
Item in Stock
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ID:
576033
Weight:
16.26ct (total)
Size:
20 x 13.8 mm
Clarity:
Translucent
Content:
2 pcs
Price:
$
45.29
Item in Stock
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ID:
596662
Weight:
9.96ct
Size:
22.2 x 10.8 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
14.60
Item in Stock
More Options & Item Details
ID:
497821
Weight:
3.58ct (total)
Size:
7 x 5 mm (calibrated)
Clarity:
Translucent
Content:
4 pcs
Price:
$
24.71
Item in Stock
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ID:
713070
Weight:
18.17ct
Size:
21.2 x 16.1 mm
Clarity:
VVS
Content:
1 pc
Price:
$
152.63
Item in Stock
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ID:
582417
Weight:
16.10ct
Size:
21.1 x 15.6 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
23.17
Item in Stock
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ID:
673093
Weight:
1.63ct
Size:
8 x 6 mm (calibrated)
Clarity:
SI
Content:
1 pc
Price:
$
39.12
Item in Stock
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ID:
735050
Weight:
0.16ct
Size:
4.2 x 3 mm
Clarity:
VS
Content:
1 pc
Price:
$
56.00
Item in Stock
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ID:
443385
Weight:
8.43ct (total)
Size:
11 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
27.71
Item in Stock
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ID:
464399
Weight:
4.34ct (total)
Size:
4 x 4 mm (calibrated)
Clarity:
VS
Content:
10 pcs
Price:
$
40.10
Item in Stock
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ID:
720339
Weight:
1.78ct
Size:
7.6 x 6.3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
171.32
Item in Stock
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ID:
550535
Weight:
28.19ct (total)
Size:
22.1 x 13.8 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
42.42
Item in Stock
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ID:
450940
Weight:
2.46ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
4 pcs
Price:
$
22.73
Item in Stock
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ID:
545222
Weight:
1.75ct
Size:
9 x 9 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
13.06
Item in Stock
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ID:
689618
Weight:
2.00ct
Size:
10 x 8 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
11.02
Item in Stock
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ID:
663465
Weight:
0.90ct
Size:
6 x 6 mm (calibrated)
Clarity:
VS
Price:
$
7.56
Item in Stock
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Select
1
2
3
4
5
6
7
8
9
10
pcs 0 in Cart
ID:
517572
Weight:
1.91ct
Size:
10.7 x 6.7 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
10.08
Item in Stock
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ID:
674851
Weight:
2.90ct
Size:
10 x 10 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
24.36
Item in Stock
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ID:
526304
Weight:
1.19ct
Size:
6.8 x 5.9 mm
Clarity:
VS-SI
Content:
1 pc
Price:
$
86.40
Item in Stock
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ID:
672665
Weight:
1.70ct
Size:
9.7 x 7.6 mm
Clarity:
VVS
Content:
1 pc
Price:
$
40.80
Item in Stock
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ID:
585367
Weight:
15.07ct (total)
Size:
19.8 x 12 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
10.94
Item in Stock
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ID:
265570
Weight:
0.80ct (total)
Size:
3.5 mm (calibrated)
Clarity:
VVS-VS
Content:
5 pcs
Price:
$
146.09
Item in Stock
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ID:
558492
Weight:
7.20ct (total)
Size:
12 x 10 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
54.47
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
easy site to navigate
Posted By Curt's Cabochons in June, 2025
Source: Bizrate
Overall Rating -> 10
Filters need to be improved but rest of website is great
Posted By Rock hound in December, 2025
Source: Bizrate
Overall Rating -> 10
I am never let down by GemSelect. I love that you get the exact stone you want. Shipping is always in a few days. I have spread the word about GemSelect on social media jewelry creating groups that I attend. This sapphire is going to make one gorgeous ring
Posted By Desertchick in April, 2025
Source: Bizrate
Overall Rating -> 8
Good prices
Posted By TRM in October, 2025
Source: Bizrate
Overall Rating -> 9
I was looking for a small gift for a friend- the process is the same as every other time and was very simple, and she even got her gift early! On the downside, there's no way to easily keep track of multiple Shipping Addresses, so if I want to send a gift to Friend A and to Friend B, I have to overwrite everything and it's a fair bit clunky in that regard.
Posted By Jezzi in June, 2025
Source: Bizrate
Overall Rating -> 10
It was easy to navigate
Posted By GemGod in July, 2025
Source: Bizrate
Overall Rating -> 10
Have made 2 purchases so far from GemSelect and they have been amazing! Anytime I requested additional info, videos or pictures of a particular item, the response was always timely and helpful. This is a great place to buy, if you are looking for loose stones. Highly recommend!
Posted By Britnee Rose in September, 2025
Source: Bizrate
Overall Rating -> 10
I feel Gemselect is a trustworthy company to buy from
Posted By Becky in October, 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