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)
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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)
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)
Cinnabar (77)
Citrine (4362)
Clinohumite (30)
Color-Change Diaspore (834)
Color-Change Fluorite (47)
Color-Change Garnet (190)
Color-Change Sapphire (4)
Coral (253)
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Dendritic Agate (199)
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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Clear All
ID:
525229
Weight:
28.03ct
Size:
23.7 x 18.3 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
61.06
Item in Stock
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ID:
704918
Weight:
1.44ct
Size:
10 x 8 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
43.20
Item in Stock
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ID:
645435
Weight:
1.42ct
Size:
8.9 x 3.5 mm
Clarity:
VS
Content:
1 pc
Price:
$
20.48
Item in Stock
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ID:
551156
Weight:
22.68ct (total)
Size:
18.7 x 12.9 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
34.14
Item in Stock
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ID:
577703
Weight:
8.05ct
Size:
18.4 x 11.8 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
11.26
Item in Stock
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ID:
463003
Weight:
4.07ct
Size:
14 x 10 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
32.23
Item in Stock
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ID:
407852
Weight:
3.41ct
Size:
12.4 x 7.3 mm
Clarity:
VS
Content:
1 pc
Price:
$
135.04
Item in Stock
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ID:
745534
Weight:
1.01ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
23.23
Item in Stock
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ID:
714406
Weight:
0.71ct
Size:
5 mm (calibrated)
Clarity:
SI
Content:
1 pc
Price:
$
21.30
Item in Stock
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ID:
712816
Weight:
3.95ct
Size:
12 x 8 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
10.52
Item in Stock
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ID:
715336
Weight:
6.78ct
Size:
12.6 x 9.8 mm
Clarity:
VS
Content:
1 pc
Price:
$
976.32
Item in Stock
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ID:
540029
Weight:
0.79ct (total)
Size:
6 x 4 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
8.34
Item in Stock
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ID:
533348
Weight:
2.05ct
Size:
8.4 x 7 mm
Clarity:
VS
Content:
1 pc
Price:
$
38.58
Item in Stock
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ID:
620833
Weight:
1.19ct (total)
Size:
5.9 x 5.7 mm
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
10.99
Item in Stock
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ID:
472753
Weight:
7.33ct
Size:
13 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
101.50
Item in Stock
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ID:
609046
Weight:
3.59ct
Size:
11 x 9 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
66.35
Item in Stock
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ID:
589772
Weight:
2.82ct
Size:
11 x 9 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
85.02
Item in Stock
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ID:
640740
Weight:
1.07ct
Size:
6.8 x 5.7 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
7.07
Item in Stock
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ID:
604619
Weight:
1.24ct
Size:
7 x 7 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
11.46
Item in Stock
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ID:
724678
Weight:
0.31ct
Size:
4.5 mm (calibrated)
Clarity:
VS-SI
Content:
1 pc
Price:
$
52.08
Item in Stock
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ID:
689090
Weight:
1.88ct (total)
Size:
9.1 x 5.1 mm
Clarity:
VS
Content:
2 pcs
Price:
$
18.05
Item in Stock
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ID:
460656
Weight:
4.50ct
Size:
11 x 9 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
41.58
Item in Stock
More Options & Item Details
ID:
658421
Weight:
4.59ct
Size:
16.9 x 11.3 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
16.52
Item in Stock
More Options & Item Details
ID:
672222
Weight:
2.83ct
Size:
10 x 8 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
23.77
Item in Stock
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ID:
744748
Weight:
0.77ct
Size:
5.9 x 5.3 mm
Clarity:
VS
Content:
1 pc
Price:
$
77.00
Item in Stock
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ID:
734978
Weight:
13.24ct (total)
Size:
11 x 9 mm (calibrated)
Clarity:
Opaque
Content:
2 pcs
Price:
$
66.20
Item in Stock
More Options & Item Details
ID:
460025
Weight:
4.27ct
Size:
11 x 9 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
39.46
Item in Stock
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ID:
376662
Weight:
4.16ct (total)
Size:
8.7 x 7.8 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
32.34
Item in Stock
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ID:
431170
Weight:
1.43ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
15.08
Item in Stock
More Options & Item Details
ID:
677853
Weight:
0.29ct
Size:
3.2 x 3.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
174.00
Item in Stock
More Options & Item Details
ID:
475561
Weight:
22.47ct
Size:
27 x 20 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
44.50
Item in Stock
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ID:
716439
Weight:
21.19ct
Size:
18 x 18 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
203.42
Item in Stock
More Options & Item Details
ID:
600580
Weight:
35.50ct
Size:
34 x 19.6 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
26.71
Item in Stock
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ID:
674677
Weight:
13.36ct
Size:
27 x 18.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
12.02
Item in Stock
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ID:
533402
Weight:
1.44ct
Size:
8 x 8 mm (calibrated)
Clarity:
VS
Price:
$
11.46
Item in Stock
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Select
1
2
3
pcs 0 in Cart
ID:
710784
Weight:
20.45ct
Size:
22.4 x 14.1 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
36.82
Item in Stock
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ID:
699084
Weight:
0.96ct
Size:
7 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
8.06
Item in Stock
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ID:
699015
Weight:
0.63ct
Size:
5.1 x 4.5 mm
Clarity:
VS
Content:
1 pc
Price:
$
37.80
Item in Stock
More Options & Item Details
ID:
516177
Weight:
22.78ct
Size:
17.3 x 14.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
26.76
Item in Stock
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ID:
474551
Weight:
21.93ct
Size:
28.8 x 28.1 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
28.94
Item in Stock
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ID:
545744
Weight:
0.83ct
Size:
5.9 x 5.1 mm
Clarity:
VS
Content:
1 pc
Price:
$
49.42
Item in Stock
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ID:
453856
Weight:
2.53ct
Size:
12.5 x 7 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
23.38
Item in Stock
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ID:
329082
Weight:
37.62ct
Size:
20 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
57.78
Item in Stock
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ID:
518954
Weight:
avg. 0.49 ct / each
Size:
4.6 x 4.6 mm
Clarity:
VVS-VS
Price:
$
2.69
Item in Stock
More Options & Item Details
Select
1
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pcs
ID:
608484
Weight:
7.34ct (total)
Size:
10 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
135.65
Item in Stock
More Options & Item Details
ID:
743002
Weight:
2.93ct
Size:
12 x 8 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
131.85
Item in Stock
More Options & Item Details
ID:
382724
Weight:
19.33ct
Size:
18.1 x 12.2 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
409.27
Item in Stock
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ID:
413638
Weight:
3.61ct (total)
Size:
9 x 7 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
29.70
Item in Stock
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ID:
502132
Weight:
2.18ct
Size:
15.3 x 4.9 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
71.94
Item in Stock
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ID:
480323
Weight:
7.95ct (total)
Size:
6 x 6 mm (calibrated)
Clarity:
Translucent
Content:
10 pcs
Price:
$
16.79
Item in Stock
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ID:
631642
Weight:
4.45ct
Size:
12 x 10 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
53.40
Item in Stock
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ID:
490916
Weight:
4.67ct (total)
Size:
6 mm (calibrated)
Clarity:
VS
Content:
5 pcs
Price:
$
55.00
Item in Stock
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ID:
559060
Weight:
2.00ct
Size:
7 x 7 mm (calibrated)
Clarity:
VS-SI
Content:
1 pc
Price:
$
41.05
Item in Stock
More Options & Item Details
ID:
693538
Weight:
0.57ct
Size:
5.7 x 4.3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
34.20
Item in Stock
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ID:
721319
Weight:
0.81ct
Size:
6.5 x 4.9 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
38.88
Item in Stock
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ID:
463965
Weight:
5.13ct
Size:
12 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
10.16
Item in Stock
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ID:
713696
Weight:
15.44ct
Size:
18 x 13 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
129.70
Item in Stock
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ID:
464416
Weight:
4.27ct (total)
Size:
4 x 4 mm (calibrated)
Clarity:
VS
Content:
10 pcs
Price:
$
39.46
Item in Stock
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ID:
640474
Weight:
0.28ct
Size:
5 x 3 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
13.44
Item in Stock
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ID:
393281
Weight:
3.71ct
Size:
9.6 x 9.4 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
24.49
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
All items were delivered on time with all items meeting or exceeding my expectations. Cut, clarity and color were very close to the photos and description.
Posted By Bob D in December, 2025
Source: Bizrate
Overall Rating -> 10
Very good
Hoping you will increase your inventory especially in the 6mm
Thanks
Posted By Ibie in February, 2025
Source: Bizrate
Overall Rating -> 10
Had a great experience and the prices are great
Posted By BuBx99 in November, 2025
Source: Bizrate
Overall Rating -> 10
Very food
Posted By Keeto in July, 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
Overall Rating -> 10
I always purchase my stones from GemSelect, their products are high quality and customer service is always great. I also like the fact that I am able to purchase unique items
Posted By Desperaux in November, 2025
Source: Bizrate
Overall Rating -> 10
Great for buying gemstones, came with authenticity certs. Will buy again someday!
Posted By Uggadugga in May, 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
Easy to conduct search, good amount of stock to select from along with variety of prices.
Posted By Que in June, 2025
Source: Bizrate