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 (54)
Agate (589)
Agate Geode (15)
Alexandrite (21)
Almandine Garnet (475)
Amazonite (259)
Amethyst (2866)
Amethyst Geode Slice (69)
Ametrine (163)
Andalusite (191)
Apatite (264)
Aquamarine (96)
Aragonite (24)
Aventurine (130)
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)
Demantoid Garnet (232)
Dendritic Agate (199)
Diamond (611)
Druzy Amethyst (3)
Druzy Azurite (13)
Druzy Citrine (44)
Druzy Variscite (130)
Emerald (1)
Enstatite (3)
Feather Pyrite (43)
Fire Agate (309)
Fire Opal (124)
Fluorite (160)
Fossil Coral (316)
Golden Beryl (142)
Grandidierite (170)
Grossularite Garnet (31)
Hematite (342)
Hemimorphite Druzy (46)
Hessonite Garnet (2137)
Hiddenite (10)
Howlite (133)
Idocrase (19)
Imperial Topaz (12)
Iolite (155)
Jade (68)
Jadeite (264)
Jasper (1332)
Kornerupine (211)
Kunzite (385)
Kyanite (731)
Labradorite (1174)
Lapis Lazuli (2)
Larimar (120)
Lazulite (10)
Lepidolite (27)
Malachite (179)
Malaya Garnet (103)
Mali Garnet (6)
Matrix Opal (16)
Maw-Sit-Sit (117)
Moldavite (5)
Moonstone (946)
Morganite (987)
Moss Agate (56)
Mother of Pearl (10)
Nuummite (115)
Obsidian (202)
Opal (889)
Peanut Wood (10)
Peridot (1413)
Pietersite (652)
Prehnite (790)
Psilomelane Dendrite (23)
Pyrite (6)
Pyrope Garnet (1664)
Quartz (64)
Quartz Cat's Eye (68)
Quartz With Hedenbergite (7)
Quartz With Marcasite (184)
Rainbow Moonstone (912)
Rainbow Pyrite (241)
Rhodochrosite (134)
Rhodolite Garnet (607)
Rhodonite (30)
Rose Quartz (663)
Rubellite Tourmaline (9)
Ruby (4)
Ruby in Fuchsite (90)
Ruby-Zoisite (209)
Rutile Quartz (496)
Sapphire (65)
Scolecite (29)
Seraphinite (41)
Serpentine (71)
Sillimanite (67)
Sillimanite Cat's Eye (376)
Smithsonite (1)
Smoky Quartz (919)
Snowflake Obsidian (21)
Sodalite (19)
Spectrolite (120)
Spessartite Garnet (452)
Sphalerite (345)
Sphene (574)
Spinel (942)
Star Diopside (177)
Star Garnet (112)
Star Moonstone (75)
Star Rose Quartz (22)
Star Ruby (1)
Star Sapphire (14)
Strawberry Quartz (1070)
Sunstone (522)
Tiger's Eye (776)
Tiger's Eye Matrix (274)
Topaz (459)
Tourmaline (2718)
Tsavorite Garnet (175)
Turquoise (90)
Uvarovite Garnet Drusy (80)
Variscite (4)
Zircon (771)
Clear All
ID:
418098
Weight:
5.19ct
Size:
12 x 9.5 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
27.41
Item in Stock
More Options & Item Details
ID:
439683
Weight:
0.73ct
Size:
6.1 x 5.7 mm
Clarity:
VS
Content:
1 pc
Price:
$
26.98
Item in Stock
More Options & Item Details
ID:
475148
Weight:
2.15ct (total)
Size:
6.6 x 4.6 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
8.52
Item in Stock
More Options & Item Details
ID:
420027
Weight:
1.10ct
Size:
6.8 x 5.6 mm
Clarity:
VS
Content:
1 pc
Price:
$
69.70
Item in Stock
More Options & Item Details
ID:
660405
Weight:
1.57ct
Size:
7 x 7 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
3.79
Item in Stock
More Options & Item Details
ID:
557772
Weight:
3.82ct
Size:
12 x 10 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
28.90
Item in Stock
More Options & Item Details
ID:
707126
Weight:
2.78ct
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
6.67
Item in Stock
More Options & Item Details
ID:
678063
Weight:
9.01ct
Size:
21.7 x 15.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
11.14
Item in Stock
More Options & Item Details
ID:
409278
Weight:
24.38ct
Size:
31.8 x 10.3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
585.12
Item in Stock
More Options & Item Details
ID:
699125
Weight:
3.14ct
Size:
11 x 9 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
26.38
Item in Stock
More Options & Item Details
ID:
722108
Weight:
0.53ct
Size:
5 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
25.44
Item in Stock
More Options & Item Details
ID:
674960
Weight:
12.46ct
Size:
18 x 13.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
26.79
Item in Stock
More Options & Item Details
ID:
584834
Weight:
18.15ct (total)
Size:
20.7 x 12.5 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
13.18
Item in Stock
More Options & Item Details
ID:
725857
Weight:
2.24ct (total)
Size:
7 x 5.9 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
88.73
Item in Stock
More Options & Item Details
ID:
481394
Weight:
1.65ct
Size:
6.5 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
47.41
Item in Stock
More Options & Item Details
ID:
738975
Weight:
0.40ct
Size:
8 x 4.7 mm
Clarity:
VVS
Content:
1 pc
Price:
$
3.60
Item in Stock
More Options & Item Details
ID:
700045
Weight:
0.80ct
Size:
7 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
7.68
Item in Stock
More Options & Item Details
ID:
328611
Weight:
11.45ct
Size:
16 x 16 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
18.13
Item in Stock
More Options & Item Details
ID:
387132
Weight:
5.21ct
Size:
12 x 8.8 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
41.27
Item in Stock
More Options & Item Details
ID:
699608
Weight:
0.47ct
Size:
4.7 mm
Clarity:
VS-SI
Content:
1 pc
Price:
$
28.20
Item in Stock
More Options & Item Details
ID:
724655
Weight:
0.70ct
Size:
10 x 5 mm (calibrated)
Clarity:
VS-SI
Content:
1 pc
Price:
$
21.00
Item in Stock
More Options & Item Details
ID:
490502
Weight:
4.77ct (total)
Size:
6 mm (calibrated)
Clarity:
VS
Content:
5 pcs
Price:
$
56.17
Item in Stock
More Options & Item Details
ID:
486345
Weight:
25.96ct
Size:
28 x 18.7 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
26.39
Item in Stock
More Options & Item Details
ID:
454205
Weight:
1.35ct
Size:
11.2 x 4.6 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
57.02
Item in Stock
More Options & Item Details
ID:
631627
Weight:
0.84ct
Size:
7 x 5 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
25.20
Item in Stock
More Options & Item Details
ID:
453538
Weight:
8.11ct
Size:
18.4 x 8.9 mm
Clarity:
VS
Content:
1 pc
Price:
$
267.64
Item in Stock
More Options & Item Details
ID:
554615
Weight:
1.20ct
Size:
8 x 5.6 mm
Clarity:
VS-SI
Content:
1 pc
Price:
$
31.68
Item in Stock
More Options & Item Details
ID:
367187
Weight:
7.56ct
Size:
15.1 x 9.3 mm
Clarity:
VVS
Content:
1 pc
Price:
$
51.38
Item in Stock
More Options & Item Details
ID:
711982
Weight:
4.91ct
Size:
12 x 10 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
70.70
Item in Stock
More Options & Item Details
ID:
424843
Weight:
0.78ct
Size:
6.6 x 4.8 mm
Clarity:
VS
Content:
1 pc
Price:
$
30.89
Item in Stock
More Options & Item Details
ID:
459717
Weight:
3.96ct
Size:
11 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
7.84
Item in Stock
More Options & Item Details
ID:
476999
Weight:
1.76ct
Size:
8 x 6 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
13.94
Item in Stock
More Options & Item Details
ID:
349481
Weight:
1.32ct
Size:
9.7 x 5.6 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
182.95
Item in Stock
More Options & Item Details
ID:
328610
Weight:
11.12ct
Size:
16 x 16 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
17.60
Item in Stock
More Options & Item Details
ID:
738980
Weight:
0.44ct
Size:
4.8 x 4.7 mm
Clarity:
VVS
Content:
1 pc
Price:
$
3.96
Item in Stock
More Options & Item Details
ID:
492831
Weight:
8.68ct (total)
Size:
14 x 10 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
62.80
Item in Stock
More Options & Item Details
ID:
728132
Weight:
0.03ct
Size:
2.1 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
12.37
Item in Stock
More Options & Item Details
ID:
427148
Weight:
2.43ct (total)
Size:
6 x 4 mm (calibrated)
Clarity:
VVS-VS
Content:
6 pcs
Price:
$
16.04
Item in Stock
More Options & Item Details
ID:
544415
Weight:
1.31ct (total)
Size:
7 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
9.77
Item in Stock
More Options & Item Details
ID:
735791
Weight:
44.58ct
Size:
38.3 x 19.2 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
30.76
Item in Stock
More Options & Item Details
ID:
527156
Weight:
0.82ct
Size:
6.7 x 4.8 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
53.04
Item in Stock
More Options & Item Details
ID:
341411
Weight:
8.26ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VVS
Content:
10 pcs
Price:
$
82.93
Item in Stock
More Options & Item Details
ID:
588584
Weight:
2.73ct (total)
Size:
8 x 6 mm (calibrated)
Clarity:
VS-SI
Content:
2 pcs
Price:
$
72.07
Item in Stock
More Options & Item Details
ID:
668005
Weight:
25.40ct
Size:
21.2 x 16.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
152.40
Item in Stock
More Options & Item Details
ID:
420139
Weight:
37.66ct
Size:
28.8 x 21.7 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
74.57
Item in Stock
More Options & Item Details
ID:
390893
Weight:
3.98ct
Size:
11 x 9 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
131.34
Item in Stock
More Options & Item Details
ID:
413553
Weight:
12.34ct
Size:
14 x 14 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
40.73
Item in Stock
More Options & Item Details
ID:
668877
Weight:
9.01ct
Size:
19.1 x 9.8 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
194.62
Item in Stock
More Options & Item Details
ID:
744504
Weight:
23.90ct (total)
Size:
22.8 x 11.6 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
119.50
Item in Stock
More Options & Item Details
ID:
513685
Weight:
19.70ct
Size:
25.7 x 13.9 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
26.00
Item in Stock
More Options & Item Details
ID:
578706
Weight:
1.26ct
Size:
8 x 6 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
66.53
Item in Stock
More Options & Item Details
ID:
699177
Weight:
13.53ct
Size:
19.1 x 12.6 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
16.24
Item in Stock
More Options & Item Details
ID:
509246
Weight:
27.20ct
Size:
21.1 x 19.2 mm
Clarity:
VVS
Content:
1 pc
Price:
$
251.33
Item in Stock
More Options & Item Details
ID:
434404
Weight:
1.36ct
Size:
6 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
35.90
Item in Stock
More Options & Item Details
ID:
747223
Weight:
0.15ct
Size:
3.5 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
303.42
Item in Stock
More Options & Item Details
ID:
713911
Weight:
20.58ct
Size:
20 x 15 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
172.87
Item in Stock
More Options & Item Details
ID:
699277
Weight:
1.27ct
Size:
6.3 x 5.7 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
7.62
Item in Stock
More Options & Item Details
ID:
418456
Weight:
8.07ct (total)
Size:
14 x 9 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
15.97
Item in Stock
More Options & Item Details
ID:
717165
Weight:
13.25ct
Size:
18 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
25.28
Item in Stock
More Options & Item Details
ID:
715534
Weight:
1.82ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
17.47
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
nothing but good. always have a great selection. I am a hobbyist and only collect. Great prices. I could take all day looking at a small percent of all the gemstone, fantastic
Posted By Steve m. in February, 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
Filters need to be improved but rest of website is great
Posted By Rock hound in December, 2025
Source: Bizrate
Overall Rating -> 10
It was easy and to the point
Posted By Victorius in May, 2025
Source: Bizrate
Overall Rating -> 10
I was looking for a site with every type of gem I could want for setting in luxury blades and assumed I would need to look outside the US, but GemSelect made it easy to get everything I wanted without leaving the house! Wide enough selection that I do not feel the need to look elsewhere and pricing the same.
Posted By Razormane in April, 2025
Source: Bizrate
Overall Rating -> 10
easy site to navigate
Posted By Curt's Cabochons in June, 2025
Source: Bizrate
Overall Rating -> 9
Will know more once order received
Posted By Jim in September, 2025
Source: Bizrate
Overall Rating -> 10
So far, my experience was great...Thanks
Posted By Kaydi in May, 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