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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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)
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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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Druzy Variscite (130)
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ID:
426619
Weight:
22.14ct (total)
Size:
16 x 12 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
102.29
Item in Stock
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ID:
663107
Weight:
4.63ct
Size:
12 x 9.4 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
11.11
Item in Stock
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ID:
450176
Weight:
4.35ct (total)
Size:
6.9 x 5.3 mm
Clarity:
Transparent
Content:
4 pcs
Price:
$
57.42
Item in Stock
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ID:
384557
Weight:
15.94ct (total)
Size:
12 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
63.12
Item in Stock
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ID:
406932
Weight:
8.26ct
Size:
16.4 x 11.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
30.74
Item in Stock
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ID:
528255
Weight:
5.37ct
Size:
10 x 8 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
7.09
Item in Stock
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ID:
634639
Weight:
0.92ct
Size:
7 x 5 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
16.56
Item in Stock
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ID:
708318
Weight:
5.27ct
Size:
14.3 x 11.1 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
37.94
Item in Stock
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ID:
310983
Weight:
2.89ct
Size:
9 x 7 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
167.86
Item in Stock
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ID:
433907
Weight:
4.69ct (total)
Size:
10 x 8 mm (calibrated)
Clarity:
VVS
Content:
2 pcs
Price:
$
30.96
Item in Stock
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ID:
570008
Weight:
2.19ct (total)
Size:
8 x 6 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
16.13
Item in Stock
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ID:
497563
Weight:
2.05ct
Size:
8.6 x 7.1 mm
Clarity:
VS-SI
Content:
1 pc
Price:
$
54.12
Item in Stock
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ID:
631665
Weight:
18.70ct
Size:
25.6 x 17 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
85.04
Item in Stock
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ID:
730314
Weight:
2.57ct
Size:
10 x 8 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
23.00
Item in Stock
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ID:
516184
Weight:
20.24ct
Size:
19.4 x 13.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
23.77
Item in Stock
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ID:
453747
Weight:
3.12ct
Size:
11.2 x 8 mm
Clarity:
VS
Content:
1 pc
Price:
$
28.82
Item in Stock
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ID:
713855
Weight:
18.69ct
Size:
20 x 15 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
157.00
Item in Stock
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ID:
663122
Weight:
1.37ct
Size:
7.1 x 5.8 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
8.22
Item in Stock
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ID:
457218
Weight:
1.64ct (total)
Size:
6 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
15.16
Item in Stock
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ID:
706644
Weight:
0.91ct
Size:
6.5 x 5.4 mm
Clarity:
VVS
Content:
1 pc
Price:
$
5.46
Item in Stock
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ID:
479566
Weight:
2.00ct (total)
Size:
10 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
21.12
Item in Stock
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ID:
387697
Weight:
2.08ct (total)
Size:
4 x 3 mm (calibrated)
Clarity:
VS
Content:
10 pcs
Price:
$
184.72
Item in Stock
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ID:
485280
Weight:
6.11ct (total)
Size:
11.6 x 11.5 mm
Clarity:
Translucent
Content:
2 pcs
Price:
$
32.26
Item in Stock
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ID:
521241
Weight:
11.77ct
Size:
19.4 x 12.5 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
93.22
Item in Stock
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ID:
721511
Weight:
51.65ct
Size:
45.4 x 20.8 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
61.98
Item in Stock
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ID:
370765
Weight:
25.02ct (total)
Size:
18 x 13 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
33.02
Item in Stock
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ID:
608432
Weight:
9.13ct (total)
Size:
12 x 10 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
168.72
Item in Stock
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ID:
583670
Weight:
1.48ct (total)
Size:
8 x 6 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
32.56
Item in Stock
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ID:
409676
Weight:
6.29ct (total)
Size:
11 x 9 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
27.25
Item in Stock
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ID:
676050
Weight:
5.23ct
Size:
12 x 12 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
31.38
Item in Stock
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ID:
545029
Weight:
5.84ct (total)
Size:
9 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
43.56
Item in Stock
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ID:
479292
Weight:
2.37ct (total)
Size:
10.1 x 5.1 mm
Clarity:
VS
Content:
2 pcs
Price:
$
25.03
Item in Stock
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ID:
478180
Weight:
7.66ct
Size:
18 x 13 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
70.18
Item in Stock
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ID:
681911
Weight:
0.85ct
Size:
7 x 5 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
15.30
Item in Stock
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ID:
688697
Weight:
1.66ct
Size:
8 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
9.14
Item in Stock
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ID:
718505
Weight:
40.81ct
Size:
34.3 x 24.1 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
244.86
Item in Stock
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ID:
645961
Weight:
22.43ct
Size:
26.9 x 16.8 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
12.65
Item in Stock
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ID:
315798
Weight:
6.20ct (total)
Size:
12 x 6.8 mm
Clarity:
Transparent/Translucent
Content:
2 pcs
Price:
$
22.92
Item in Stock
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ID:
655892
Weight:
1.55ct
Size:
8 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
37.20
Item in Stock
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ID:
737734
Weight:
0.61ct
Size:
6 x 4 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
167.75
Item in Stock
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ID:
715481
Weight:
1.62ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
15.55
Item in Stock
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ID:
697467
Weight:
0.64ct
Size:
7 x 5 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
3.84
Item in Stock
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ID:
610616
Weight:
avg. 0.44 ct / each
Size:
6 x 5 mm
Clarity:
VS
Price:
$
3.38
Item in Stock
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ID:
719368
Weight:
0.80ct
Size:
7 x 5 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
6.72
Item in Stock
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ID:
711494
Weight:
1.75ct
Size:
9 x 6 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
4.67
Item in Stock
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ID:
506058
Weight:
52.00ct
Size:
24.9 x 21.3 mm
Clarity:
IF
Content:
1 pc
Price:
$
411.84
Item in Stock
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ID:
346715
Weight:
1.98ct
Size:
16.9 x 3.7 mm
Clarity:
VS
Content:
1 pc
Price:
$
86.26
Item in Stock
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ID:
734691
Weight:
75.56ct
Size:
29.5 x 29.4 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
725.38
Item in Stock
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ID:
707998
Weight:
6.67ct (total)
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
11.04
Item in Stock
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ID:
447320
Weight:
4.58ct
Size:
13 x 8.4 mm
Clarity:
VS
Content:
1 pc
Price:
$
150.90
Item in Stock
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ID:
481672
Weight:
28.35ct
Size:
25.1 x 23.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
40.79
Item in Stock
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ID:
380940
Weight:
1.59ct
Size:
8 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
104.94
Item in Stock
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ID:
470751
Weight:
8.64ct
Size:
10 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
8.33
Item in Stock
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ID:
567637
Weight:
3.93ct
Size:
11.2 x 9.4 mm
Clarity:
VVS
Content:
1 pc
Price:
$
23.58
Item in Stock
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ID:
717922
Weight:
1.96ct (total)
Size:
6.1 x 5 mm
Clarity:
VVS
Content:
2 pcs
Price:
$
58.80
Item in Stock
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ID:
725888
Weight:
1.45ct (total)
Size:
6 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
13.92
Item in Stock
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ID:
387891
Weight:
3.24ct (total)
Size:
4.6 x 4.6 mm
Clarity:
VVS-VS
Content:
6 pcs
Price:
$
21.38
Item in Stock
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ID:
718255
Weight:
1.00ct
Size:
5.9 x 4.8 mm
Clarity:
VS
Content:
1 pc
Price:
$
30.00
Item in Stock
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ID:
658239
Weight:
16.50ct
Size:
16.8 x 16.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
24.16
Item in Stock
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ID:
746650
Weight:
0.97ct
Size:
8.4 x 6 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
22.31
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
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 -> 8
First time using this website. It was both exciting finding things in my price range and things Iam gonna save up for and use in other pieces. I love that the picture of the gem is the exact gem I'll be buying. I haven't tested the gems yes but they said they sold me 100% natural gems.
Posted By Salvo in July, 2025
Source: Bizrate
Overall Rating -> 10
Very fast navigation and purchase, which is good. I need to strike while the iron is hot.
Posted By Tim G. in February, 2025
Source: Bizrate
Overall Rating -> 10
love these guys been ordering since 2000 maybe
Posted By JHT in April, 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
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
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 -> 9
I did not realize these stones were of jewelry quality. They are really beautiful, just not what I was expecting which was more of a natural stone.
Posted By Jewelry Quality Stones in July, 2025
Source: Bizrate
Overall Rating -> 10
Was a good experience.
Posted By Tim in July, 2025
Source: Bizrate