Loose Untreated Gemstones: Certified Natural Gems for Collectors and Jewelry, Wholesale Untreated Stones
Bi-color Untreated Gemstones
Black Untreated Gemstones
Blue Untreated Gemstones
Brown Untreated Gemstones
Golden Untreated Gemstones
Gray Untreated Gemstones
Green Untreated Gemstones
Multicolor Untreated Gemstones
Orange Untreated Gemstones
Pink Untreated Gemstones
Purple Untreated Gemstones
Red Untreated Gemstones
Turquoise Untreated Gemstones
Violet Untreated Gemstones
White Untreated Gemstones
Yellow Untreated Gemstones
Clear Colors
Single
Pairs
Lots
Faceted
Cabochons
Showing results for
Sort By:
Price - High to Low
Price - Low to High
Size - Largest to Smallest
Size - Smallest to Largest
Weight - High to Low
Weight - Low to High
Gemtypes in Category:
Actinolite Cat's Eye (55)
Agate (545)
Agate Geode (17)
Alexandrite (28)
Almandine Garnet (320)
Amazonite (280)
Amethyst (2979)
Amethyst Geode Slice (70)
Ametrine (145)
Andalusite (192)
Apatite (271)
Aquamarine (116)
Aragonite (27)
Aventurine (134)
Axinite (10)
Beryl (580)
Black Opal (6)
Bloodstone (211)
Boulder Opal (229)
Calcite (71)
Carnelian (30)
Cat's Eye Apatite (30)
Cat's Eye Aquamarine (15)
Cat's Eye Beryl (3)
Cat's Eye Moonstone (36)
Cat's Eye Opal (142)
Cat's Eye Scapolite (79)
Cavansite (36)
Chalcedony (221)
Charoite (125)
Chocolate Opal (75)
Chrome Diopside (112)
Chrome Tourmaline (2)
Chrysoberyl (93)
Chrysoberyl Cat's Eye (55)
Chrysocolla (49)
Chrysoprase (19)
Cinnabar (78)
Citrine (4507)
Clinohumite (32)
Color-Change Diaspore (855)
Color-Change Fluorite (55)
Color-Change Garnet (193)
Coral (267)
Demantoid Garnet (235)
Dendritic Agate (198)
Diamond (600)
Druzy Amethyst (3)
Druzy Azurite (13)
Druzy Citrine (45)
Druzy Variscite (130)
Emerald (1)
Enstatite (3)
Feather Pyrite (43)
Fire Agate (314)
Fire Opal (123)
Fluorite (159)
Fossil Coral (322)
Golden Beryl (149)
Grandidierite (165)
Grossularite Garnet (35)
Hematite (352)
Hemimorphite Druzy (46)
Hessonite Garnet (2162)
Hiddenite (10)
Howlite (133)
Idocrase (22)
Imperial Topaz (12)
Iolite (169)
Jade (68)
Jadeite (279)
Jasper (1330)
Kornerupine (209)
Kunzite (385)
Kyanite (747)
Labradorite (1211)
Lapis Lazuli (2)
Larimar (122)
Lazulite (10)
Lepidolite (33)
Malachite (189)
Malaya Garnet (109)
Mali Garnet (7)
Matrix Opal (16)
Maw-Sit-Sit (121)
Moldavite (8)
Moonstone (963)
Morganite (979)
Moss Agate (54)
Mother of Pearl (11)
Nuummite (115)
Obsidian (208)
Opal (898)
Peanut Wood (11)
Peridot (1442)
Pietersite (584)
Prehnite (793)
Psilomelane Dendrite (23)
Pyrite (11)
Pyrope Garnet (1700)
Quartz (67)
Quartz Cat's Eye (70)
Quartz With Hedenbergite (7)
Quartz With Marcasite (185)
Rainbow Moonstone (926)
Rainbow Pyrite (249)
Rhodochrosite (138)
Rhodolite Garnet (408)
Rhodonite (30)
Rose Quartz (680)
Rubellite Tourmaline (9)
Ruby (4)
Ruby in Fuchsite (92)
Ruby-Zoisite (213)
Rutile Quartz (499)
Sapphire (60)
Scolecite (30)
Seraphinite (44)
Serpentine (74)
Sillimanite (68)
Sillimanite Cat's Eye (381)
Smithsonite (1)
Smoky Quartz (951)
Snowflake Obsidian (23)
Sodalite (21)
Spectrolite (127)
Spessartite Garnet (456)
Sphalerite (352)
Sphene (585)
Spinel (883)
Star Diopside (163)
Star Garnet (119)
Star Moonstone (78)
Star Rose Quartz (23)
Star Ruby (1)
Star Sapphire (15)
Strawberry Quartz (1092)
Sunstone (527)
Tiger's Eye (785)
Tiger's Eye Matrix (281)
Topaz (482)
Tourmaline (2596)
Tsavorite Garnet (186)
Turquoise (96)
Uvarovite Garnet Drusy (50)
Variscite (5)
Zircon (782)
Clear All
ID:
479361
Weight:
1.00ct (total)
Size:
4.8 x 3.9 mm
Clarity:
VS-SI
Content:
3 pcs
Price:
$
132.00
Item in Stock
More Options & Item Details
ID:
626942
Weight:
7.87ct
Size:
19.2 x 9 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
41.23
Item in Stock
More Options & Item Details
ID:
687844
Weight:
0.13ct
Size:
5 x 3 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
6.24
Item in Stock
More Options & Item Details
ID:
696153
Weight:
31.52ct
Size:
29.4 x 23.8 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
21.56
Item in Stock
More Options & Item Details
ID:
561936
Weight:
2.33ct (total)
Size:
7 x 5 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
17.94
Item in Stock
More Options & Item Details
ID:
739553
Weight:
1.16ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
10.44
Item in Stock
More Options & Item Details
ID:
457722
Weight:
0.84ct
Size:
8.5 x 4.7 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
88.70
Item in Stock
More Options & Item Details
ID:
673230
Weight:
2.28ct
Size:
10 x 8 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
54.72
Item in Stock
More Options & Item Details
ID:
418174
Weight:
10.14ct (total)
Size:
15.2 x 10.5 mm
Clarity:
Translucent
Content:
2 pcs
Price:
$
20.08
Item in Stock
More Options & Item Details
ID:
350525
Weight:
2.53ct (total)
Size:
3 x 3 mm (calibrated)
Clarity:
Transparent
Content:
20 pcs
Price:
$
57.78
Item in Stock
More Options & Item Details
ID:
512165
Weight:
2.57ct
Size:
12.2 x 6.3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
234.07
Item in Stock
More Options & Item Details
ID:
718151
Weight:
0.68ct
Size:
6 x 4 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
20.40
Item in Stock
More Options & Item Details
ID:
583886
Weight:
9.44ct
Size:
17.6 x 11.1 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
89.22
Item in Stock
More Options & Item Details
ID:
493123
Weight:
5.15ct
Size:
14 x 10 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
37.25
Item in Stock
More Options & Item Details
ID:
691698
Weight:
0.82ct
Size:
6.2 x 4.3 mm
Clarity:
SI-I1
Content:
1 pc
Price:
$
49.20
Item in Stock
More Options & Item Details
ID:
585542
Weight:
1.21ct (total)
Size:
5 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
7.99
Item in Stock
More Options & Item Details
ID:
712886
Weight:
0.92ct
Size:
6.6 x 4.9 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
18.37
Item in Stock
More Options & Item Details
ID:
649872
Weight:
9.35ct
Size:
18.4 x 13.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
6.62
Item in Stock
More Options & Item Details
ID:
467839
Weight:
5.44ct (total)
Size:
3 mm (calibrated)
Clarity:
Transparent
Content:
30 pcs
Price:
$
35.90
Item in Stock
More Options & Item Details
ID:
516385
Weight:
1.91ct
Size:
9 x 7 mm (calibrated)
Clarity:
VVS
Price:
$
17.65
Item in Stock
More Options & Item Details
ID:
500219
Weight:
1.99ct (total)
Size:
2.1 mm (calibrated)
Clarity:
Transparent
Content:
30 pcs
Price:
$
13.14
Item in Stock
More Options & Item Details
ID:
620784
Weight:
3.93ct (total)
Size:
12 x 6 mm
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
41.50
Item in Stock
More Options & Item Details
ID:
574066
Weight:
avg. 0.52 ct / each
Size:
6 x 4 mm (calibrated)
Clarity:
Transparent
Price:
$
3.98
Item in Stock
More Options & Item Details
Select
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
pcs
ID:
514065
Weight:
avg. 0.69 ct / each
Size:
6.3 x 4.1 mm
Clarity:
SI
Price:
$
15.11
Item in Stock
More Options & Item Details
Select
1
2
3
4
5
6
7
8
9
10
11
pcs
ID:
423556
Weight:
5.20ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
10 pcs
Price:
$
54.91
Item in Stock
More Options & Item Details
ID:
695903
Weight:
6.70ct
Size:
10.9 x 9.5 mm
Clarity:
VS
Content:
1 pc
Price:
$
201.00
Item in Stock
More Options & Item Details
ID:
583885
Weight:
8.88ct
Size:
16 x 13.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
76.30
Item in Stock
More Options & Item Details
ID:
712452
Weight:
4.51ct (total)
Size:
12 x 6 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
12.01
Item in Stock
More Options & Item Details
ID:
718040
Weight:
24.70ct
Size:
30 x 22 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
88.92
Item in Stock
More Options & Item Details
ID:
712589
Weight:
1.82ct
Size:
9 x 6 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
4.85
Item in Stock
More Options & Item Details
ID:
694271
Weight:
0.69ct
Size:
11.3 x 3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
20.70
Item in Stock
More Options & Item Details
ID:
365347
Weight:
1.56ct
Size:
7.7 x 5.9 mm
Clarity:
VS
Content:
1 pc
Price:
$
174.65
Item in Stock
More Options & Item Details
ID:
699838
Weight:
0.88ct
Size:
6 x 5 mm
Clarity:
VS
Content:
1 pc
Price:
$
37.91
Item in Stock
More Options & Item Details
ID:
661860
Weight:
1.68ct
Size:
8 x 6.6 mm
Clarity:
VS
Content:
1 pc
Price:
$
40.32
Item in Stock
More Options & Item Details
ID:
539705
Weight:
2.04ct
Size:
7 x 7 mm (calibrated)
Clarity:
VS-SI
Content:
1 pc
Price:
$
39.83
Item in Stock
More Options & Item Details
ID:
431448
Weight:
3.09ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
4 pcs
Price:
$
73.42
Item in Stock
More Options & Item Details
ID:
719758
Weight:
3.93ct
Size:
10 x 8 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
117.90
Item in Stock
More Options & Item Details
ID:
479941
Weight:
5.04ct
Size:
11 x 9 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
38.81
Item in Stock
More Options & Item Details
ID:
672187
Weight:
1.17ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
28.08
Item in Stock
More Options & Item Details
ID:
713778
Weight:
0.80ct
Size:
7 x 5 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
13.44
Item in Stock
More Options & Item Details
ID:
381749
Weight:
2.23ct (total)
Size:
5.9 x 4.5 mm
Clarity:
VVS-VS
Content:
5 pcs
Price:
$
88.31
Item in Stock
More Options & Item Details
ID:
606883
Weight:
0.67ct
Size:
8 x 6 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
13.27
Item in Stock
More Options & Item Details
ID:
675185
Weight:
2.78ct
Size:
10 x 10 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
23.35
Item in Stock
More Options & Item Details
ID:
594886
Weight:
3.68ct
Size:
11 x 11 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
48.58
Item in Stock
More Options & Item Details
ID:
559068
Weight:
2.08ct
Size:
7 x 7 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
42.68
Item in Stock
More Options & Item Details
ID:
704998
Weight:
24.60ct
Size:
38.7 x 9.4 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
5.90
Item in Stock
More Options & Item Details
ID:
368786
Weight:
3.24ct
Size:
8.4 x 7.9 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
21.04
Item in Stock
More Options & Item Details
ID:
471353
Weight:
43.59ct
Size:
32.7 x 29.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
84.00
Item in Stock
More Options & Item Details
ID:
621637
Weight:
1.47ct
Size:
6 x 6 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
30.91
Item in Stock
More Options & Item Details
ID:
500207
Weight:
3.22ct (total)
Size:
4 x 4 mm (calibrated)
Clarity:
VVS-VS
Content:
8 pcs
Price:
$
29.75
Item in Stock
More Options & Item Details
ID:
489377
Weight:
3.98ct (total)
Size:
4.5 mm (calibrated)
Clarity:
VVS-VS
Content:
10 pcs
Price:
$
78.80
Item in Stock
More Options & Item Details
ID:
711286
Weight:
4.41ct
Size:
12 x 10 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
63.50
Item in Stock
More Options & Item Details
ID:
534783
Weight:
3.16ct
Size:
10 x 10 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
25.03
Item in Stock
More Options & Item Details
ID:
479447
Weight:
4.64ct (total)
Size:
10 x 5.1 mm
Clarity:
VS
Content:
4 pcs
Price:
$
49.00
Item in Stock
More Options & Item Details
ID:
397362
Weight:
8.16ct
Size:
12 x 12 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
53.86
Item in Stock
More Options & Item Details
ID:
697115
Weight:
2.71ct
Size:
13.3 x 9.6 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
68.43
Item in Stock
More Options & Item Details
ID:
617790
Weight:
33.95ct
Size:
40.2 x 21.8 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
29.33
Item in Stock
More Options & Item Details
ID:
394775
Weight:
4.07ct
Size:
10 x 10 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
26.87
Item in Stock
More Options & Item Details
ID:
544456
Weight:
0.71ct
Size:
6.1 x 4.4 mm
Clarity:
VS
Content:
1 pc
Price:
$
31.78
Item in Stock
More Options & Item Details
ID:
485599
Weight:
21.95ct (total)
Size:
13 x 13 mm (calibrated)
Clarity:
Translucent
Content:
4 pcs
Price:
$
28.98
Item in Stock
More Options & Item Details
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
Ive been looking for a place to buy loose gemstones for years and was thrilled when I found this site
Posted By Bern in October, 2024
Source: Bizrate
Overall Rating -> 10
I searched for the size, dimensions and quality of the stones I was looking for and then compared and ordered.
Posted By Tim in March, 2025
Source: Bizrate
Overall Rating -> 10
The stones are very nice.
Posted By Mvk in August, 2025
Source: Bizrate
Overall Rating -> 10
looked at pink stones and at sapphires bought some sapphires. I love looking and collecting gemstones..
Posted By Steven M. in February, 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
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
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
Overall Rating -> 10
It's always a pleasure doing business with Gem Select. Outstanding products ant very reasonable prices. Thank You One and All.
Posted By G.W. or Bakyow in July, 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