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 (166)
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 (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)
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 (6)
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 (989)
Moss Agate (56)
Mother of Pearl (10)
Nuummite (115)
Obsidian (204)
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 (609)
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 (944)
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 (2722)
Tsavorite Garnet (175)
Turquoise (90)
Uvarovite Garnet Drusy (80)
Variscite (4)
Zircon (771)
Clear All
ID:
698769
Weight:
2.11ct (total)
Size:
6.1 x 5.4 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
12.66
Item in Stock
More Options & Item Details
ID:
722667
Weight:
14.91ct
Size:
23.2 x 13.3 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
125.24
Item in Stock
More Options & Item Details
ID:
700576
Weight:
11.53ct
Size:
11 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
11.06
Item in Stock
More Options & Item Details
ID:
737165
Weight:
40.21ct
Size:
38.4 x 12.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
4.02
Item in Stock
More Options & Item Details
ID:
563606
Weight:
1.61ct
Size:
7 mm (calibrated)
Clarity:
VS-SI
Content:
1 pc
Price:
$
36.13
Item in Stock
More Options & Item Details
ID:
452447
Weight:
0.80ct
Size:
5 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
36.96
Item in Stock
More Options & Item Details
ID:
597738
Weight:
0.48ct
Size:
4.5 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
17.60
Item in Stock
More Options & Item Details
ID:
529150
Weight:
1.94ct
Size:
8.2 x 6.8 mm
Clarity:
VS
Content:
1 pc
Price:
$
38.41
Item in Stock
More Options & Item Details
ID:
514535
Weight:
16.21ct (total)
Size:
19.2 x 11.1 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
42.37
Item in Stock
More Options & Item Details
ID:
694090
Weight:
31.17ct
Size:
35.6 x 10.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
3.74
Item in Stock
More Options & Item Details
ID:
696114
Weight:
40.40ct
Size:
38.3 x 27.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
24.24
Item in Stock
More Options & Item Details
ID:
648308
Weight:
1.17ct
Size:
6 x 6 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
26.68
Item in Stock
More Options & Item Details
ID:
337578
Weight:
6.72ct (total)
Size:
4.5 mm (calibrated)
Clarity:
Transparent
Content:
10 pcs
Price:
$
62.09
Item in Stock
More Options & Item Details
ID:
602293
Weight:
2.60ct
Size:
10 x 8 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
24.02
Item in Stock
More Options & Item Details
ID:
471021
Weight:
39.37ct
Size:
27.5 x 15.2 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
155.90
Item in Stock
More Options & Item Details
ID:
312017
Weight:
2.28ct (total)
Size:
2.9 x 2.8 mm
Clarity:
Transparent
Content:
20 pcs
Price:
$
51.17
Item in Stock
More Options & Item Details
ID:
664693
Weight:
2.15ct (total)
Size:
6 x 6 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
18.06
Item in Stock
More Options & Item Details
ID:
712665
Weight:
4.33ct
Size:
12 x 10 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
62.35
Item in Stock
More Options & Item Details
ID:
636959
Weight:
28.23ct (total)
Size:
20.2 x 10.2 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
101.63
Item in Stock
More Options & Item Details
ID:
645952
Weight:
12.27ct
Size:
24.8 x 13.3 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
38.28
Item in Stock
More Options & Item Details
ID:
552298
Weight:
10.77ct
Size:
20 x 15 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
28.43
Item in Stock
More Options & Item Details
ID:
519139
Weight:
1.61ct
Size:
9 x 7 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
148.76
Item in Stock
More Options & Item Details
ID:
451094
Weight:
1.42ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
13.12
Item in Stock
More Options & Item Details
ID:
389491
Weight:
3.59ct (total)
Size:
7.9 x 6.9 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
23.70
Item in Stock
More Options & Item Details
ID:
740678
Weight:
0.07ct
Size:
4.1 x 2.1 mm
Clarity:
VVS
Content:
1 pc
Price:
$
293.12
Item in Stock
More Options & Item Details
ID:
448557
Weight:
1.10ct
Size:
7.4 x 5.3 mm
Clarity:
VS
Content:
1 pc
Price:
$
699.86
Item in Stock
More Options & Item Details
ID:
722752
Weight:
20.60ct
Size:
24.3 x 13.4 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
173.04
Item in Stock
More Options & Item Details
ID:
431481
Weight:
1.72ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
18.13
Item in Stock
More Options & Item Details
ID:
567453
Weight:
0.21ct (total)
Size:
3 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
452.32
Item in Stock
More Options & Item Details
ID:
457915
Weight:
0.92ct
Size:
10.4 x 5.1 mm
Clarity:
VVS
Content:
1 pc
Price:
$
97.15
Item in Stock
More Options & Item Details
ID:
697884
Weight:
1.28ct
Size:
6.9 x 5.6 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
7.68
Item in Stock
More Options & Item Details
ID:
690557
Weight:
24.92ct
Size:
22.4 x 18.4 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
585.22
Item in Stock
More Options & Item Details
ID:
605044
Weight:
58.00ct
Size:
30.5 x 26.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
35.99
Item in Stock
More Options & Item Details
ID:
608478
Weight:
3.51ct (total)
Size:
8 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
64.86
Item in Stock
More Options & Item Details
ID:
686798
Weight:
1.08ct (total)
Size:
6.1 x 4.2 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
23.33
Item in Stock
More Options & Item Details
ID:
693522
Weight:
36.80ct
Size:
39.1 x 11.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
13.25
Item in Stock
More Options & Item Details
ID:
469747
Weight:
7.38ct (total)
Size:
13.4 x 9.4 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
14.62
Item in Stock
More Options & Item Details
ID:
730072
Weight:
2.02ct
Size:
15.1 x 4.4 mm
Clarity:
VS
Content:
1 pc
Price:
$
121.20
Item in Stock
More Options & Item Details
ID:
712048
Weight:
60.94ct (total)
Size:
25.3 mm
Clarity:
Translucent
Content:
2 pcs
Price:
$
162.35
Item in Stock
More Options & Item Details
ID:
709809
Weight:
1.08ct
Size:
6.9 x 5.3 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
19.34
Item in Stock
More Options & Item Details
ID:
555606
Weight:
1.40ct
Size:
7 x 5 mm (calibrated)
Clarity:
VS-SI
Content:
1 pc
Price:
$
36.96
Item in Stock
More Options & Item Details
ID:
461279
Weight:
4.83ct
Size:
11 x 9 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
44.63
Item in Stock
More Options & Item Details
ID:
348999
Weight:
2.47ct
Size:
23.5 x 4 mm
Clarity:
VS-SI
Content:
1 pc
Price:
$
74.10
Item in Stock
More Options & Item Details
ID:
650563
Weight:
18.34ct
Size:
22.9 x 21.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
11.00
Item in Stock
More Options & Item Details
ID:
491751
Weight:
62.15ct (total)
Size:
24.3 x 17.1 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
73.01
Item in Stock
More Options & Item Details
ID:
714837
Weight:
15.68ct
Size:
19 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
40.64
Item in Stock
More Options & Item Details
ID:
552520
Weight:
6.73ct
Size:
17 x 12 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
13.15
Item in Stock
More Options & Item Details
ID:
389598
Weight:
2.91ct (total)
Size:
7.3 x 6.2 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
19.21
Item in Stock
More Options & Item Details
ID:
541566
Weight:
4.94ct (total)
Size:
8.7 x 7.3 mm
Clarity:
VS-SI
Content:
2 pcs
Price:
$
99.25
Item in Stock
More Options & Item Details
ID:
713915
Weight:
0.83ct
Size:
7 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
13.94
Item in Stock
More Options & Item Details
ID:
737498
Weight:
4.25ct
Size:
10 x 8.4 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
106.25
Item in Stock
More Options & Item Details
ID:
743161
Weight:
3.53ct
Size:
12 x 8 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
158.85
Item in Stock
More Options & Item Details
ID:
366387
Weight:
1.26ct
Size:
7.1 x 5.6 mm
Clarity:
VS-SI
Content:
1 pc
Price:
$
177.01
Item in Stock
More Options & Item Details
ID:
718471
Weight:
0.02ct
Size:
2 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
19.20
Item in Stock
More Options & Item Details
ID:
431708
Weight:
1.49ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
15.72
Item in Stock
More Options & Item Details
ID:
710210
Weight:
1.90ct
Size:
13 x 5.8 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
5.54
Item in Stock
More Options & Item Details
ID:
541602
Weight:
6.28ct
Size:
14.7 x 11.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
89.71
Item in Stock
More Options & Item Details
ID:
483563
Weight:
1.40ct
Size:
7.1 x 6.2 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
120.12
Item in Stock
More Options & Item Details
ID:
441125
Weight:
2.09ct
Size:
8 x 6.5 mm
Clarity:
VS
Content:
1 pc
Price:
$
68.36
Item in Stock
More Options & Item Details
ID:
531011
Weight:
3.75ct
Size:
9 x 9 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
34.66
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 -> 8
I visited several online loose stone shops trying to find rare stones. I finally found one that I've been looking for here, and very satisfied. Looking forward to receive the item in 3 weeks.
Posted By Atsu in December, 2025
Source: Bizrate
Overall Rating -> 10
I have found GemSelect to have the best selections of quality stones at a reasonable price. I like the packaging and the report availability.
Posted By Sam in March, 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 -> 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
Enjoy every moment
Posted By Ferns in October, 2025
Source: Bizrate
Overall Rating -> 10
The site provided lots of detail, factual data, and good photos. I also like the availability of searching by price range as well as by the type of stone.
Posted By SLIntuitive Donna in July, 2025
Source: Bizrate
Overall Rating -> 10
Very good Hoping you will increase your inventory especially in the 6mmThanks
Posted By Ibie in February, 2025
Source: Bizrate
Overall Rating -> 10
Good selection, using for custom jewlery for my wife.
Posted By Smitty in June, 2025
Source: Bizrate
Overall Rating -> 10
Had a great experience and the prices are great
Posted By BuBx99 in November, 2025
Source: Bizrate