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:
711854
Weight:
0.58ct
Size:
6 x 4 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
1.55
Item in Stock
More Options & Item Details
ID:
721822
Weight:
0.62ct
Size:
8 x 4 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
11.16
Item in Stock
More Options & Item Details
ID:
683023
Weight:
0.55ct
Size:
5.7 x 3.9 mm
Clarity:
VS
Content:
1 pc
Price:
$
8.25
Item in Stock
More Options & Item Details
ID:
698494
Weight:
3.42ct
Size:
11 x 9 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
28.73
Item in Stock
More Options & Item Details
ID:
739362
Weight:
2.48ct
Size:
13.1 x 7.1 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
124.00
Item in Stock
More Options & Item Details
ID:
550361
Weight:
1.54ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
11.59
Item in Stock
More Options & Item Details
ID:
534773
Weight:
3.11ct
Size:
11 x 9 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
24.64
Item in Stock
More Options & Item Details
ID:
442545
Weight:
2.40ct
Size:
7.5 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
79.20
Item in Stock
More Options & Item Details
ID:
535700
Weight:
2.02ct
Size:
9 x 7 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
16.00
Item in Stock
More Options & Item Details
ID:
431447
Weight:
3.69ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
4 pcs
Price:
$
87.67
Item in Stock
More Options & Item Details
ID:
282974
Weight:
27.53ct (total)
Size:
12 mm (calibrated)
Clarity:
Transparent
Content:
4 pcs
Price:
$
41.29
Item in Stock
More Options & Item Details
ID:
248000
Weight:
13.14ct
Size:
19.5 x 13.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
121.42
Item in Stock
More Options & Item Details
ID:
480774
Weight:
2.17ct (total)
Size:
5.9 x 3.8 mm
Clarity:
VVS-VS
Content:
4 pcs
Price:
$
20.05
Item in Stock
More Options & Item Details
ID:
684223
Weight:
1.00ct (total)
Size:
5 x 4 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
42.00
Item in Stock
More Options & Item Details
ID:
711199
Weight:
0.64ct
Size:
6 x 4 mm (calibrated)
Clarity:
Translucent
Content:
1 pc
Price:
$
1.42
Item in Stock
More Options & Item Details
ID:
522435
Weight:
28.03ct
Size:
30.1 x 20.6 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
141.34
Item in Stock
More Options & Item Details
ID:
687591
Weight:
6.40ct (total)
Size:
15.5 x 10.7 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
18.89
Item in Stock
More Options & Item Details
ID:
736371
Weight:
30.90ct
Size:
28.7 x 20 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
29.05
Item in Stock
More Options & Item Details
ID:
399841
Weight:
3.54ct
Size:
9 x 9 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
174.62
Item in Stock
More Options & Item Details
ID:
686818
Weight:
3.34ct (total)
Size:
8.4 x 6.4 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
4.01
Item in Stock
More Options & Item Details
ID:
464510
Weight:
3.34ct (total)
Size:
4 x 4 mm (calibrated)
Clarity:
VS
Content:
10 pcs
Price:
$
30.86
Item in Stock
More Options & Item Details
ID:
606818
Weight:
1.78ct (total)
Size:
9.1 x 5.1 mm
Clarity:
VS
Content:
2 pcs
Price:
$
11.75
Item in Stock
More Options & Item Details
ID:
678055
Weight:
0.40ct
Size:
3.7 x 3.5 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
240.00
Item in Stock
More Options & Item Details
ID:
726067
Weight:
0.64ct
Size:
6 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
6.14
Item in Stock
More Options & Item Details
ID:
491094
Weight:
19.79ct (total)
Size:
10 mm (calibrated)
Clarity:
Opaque
Content:
4 pcs
Price:
$
19.00
Item in Stock
More Options & Item Details
ID:
497960
Weight:
22.79ct
Size:
20.2 x 14 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
25.26
Item in Stock
More Options & Item Details
ID:
710308
Weight:
1.48ct
Size:
11 x 5.2 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
4.32
Item in Stock
More Options & Item Details
ID:
570036
Weight:
1.76ct
Size:
7 x 5 mm (calibrated)
Clarity:
SI
Content:
1 pc
Price:
$
41.82
Item in Stock
More Options & Item Details
ID:
485136
Weight:
6.87ct (total)
Size:
11.5 x 11.1 mm
Clarity:
Translucent
Content:
2 pcs
Price:
$
36.28
Item in Stock
More Options & Item Details
ID:
678036
Weight:
6.41ct
Size:
11.6 x 8.9 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
15.38
Item in Stock
More Options & Item Details
ID:
335974
Weight:
7.47ct (total)
Size:
11 x 9 mm (calibrated)
Clarity:
Transparent
Content:
2 pcs
Price:
$
19.72
Item in Stock
More Options & Item Details
ID:
743009
Weight:
6.37ct
Size:
16 x 12 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
25.48
Item in Stock
More Options & Item Details
ID:
726202
Weight:
0.42ct
Size:
5 x 5 mm (calibrated)
Clarity:
VVS
Content:
1 pc
Price:
$
4.03
Item in Stock
More Options & Item Details
ID:
494231
Weight:
3.09ct (total)
Size:
5 mm (calibrated)
Clarity:
Translucent
Content:
6 pcs
Price:
$
22.15
Item in Stock
More Options & Item Details
ID:
706488
Weight:
26.17ct
Size:
20 x 15 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
53.39
Item in Stock
More Options & Item Details
ID:
562624
Weight:
1.39ct (total)
Size:
6 x 6 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
10.57
Item in Stock
More Options & Item Details
ID:
680826
Weight:
0.80ct
Size:
6 mm (calibrated)
Clarity:
SI
Content:
1 pc
Price:
$
24.00
Item in Stock
More Options & Item Details
ID:
351132
Weight:
6.15ct
Size:
19.5 x 9.8 mm
Clarity:
VS
Content:
1 pc
Price:
$
56.83
Item in Stock
More Options & Item Details
ID:
479608
Weight:
2.35ct (total)
Size:
10.1 x 5.1 mm
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
24.82
Item in Stock
More Options & Item Details
ID:
725202
Weight:
58.82ct
Size:
35.3 x 22.3 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
211.75
Item in Stock
More Options & Item Details
ID:
731124
Weight:
18.64ct
Size:
19 x 19 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
22.81
Item in Stock
More Options & Item Details
ID:
657911
Weight:
1.17ct
Size:
6.5 x 6.4 mm
Clarity:
Transparent
Content:
1 pc
Price:
$
5.62
Item in Stock
More Options & Item Details
ID:
639066
Weight:
1.45ct
Size:
8 x 6 mm (calibrated)
Clarity:
VS-SI
Content:
1 pc
Price:
$
36.37
Item in Stock
More Options & Item Details
ID:
520153
Weight:
2.41ct (total)
Size:
7.4 x 4.9 mm
Clarity:
Transparent
Content:
2 pcs
Price:
$
9.54
Item in Stock
More Options & Item Details
ID:
715471
Weight:
4.23ct
Size:
12 x 10 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
40.61
Item in Stock
More Options & Item Details
ID:
546899
Weight:
1.23ct (total)
Size:
7 x 5 mm (calibrated)
Clarity:
VVS-VS
Content:
2 pcs
Price:
$
9.74
Item in Stock
More Options & Item Details
ID:
721821
Weight:
0.51ct
Size:
8 x 4 mm (calibrated)
Clarity:
VS
Content:
1 pc
Price:
$
9.18
Item in Stock
More Options & Item Details
ID:
566489
Weight:
16.46ct (total)
Size:
19.6 x 12.3 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
37.60
Item in Stock
More Options & Item Details
ID:
451036
Weight:
1.43ct (total)
Size:
5 x 5 mm (calibrated)
Clarity:
VS
Content:
2 pcs
Price:
$
13.21
Item in Stock
More Options & Item Details
ID:
724980
Weight:
0.76ct
Size:
10.9 x 2.9 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
31.92
Item in Stock
More Options & Item Details
ID:
738782
Weight:
0.43ct
Size:
7.8 x 3.7 mm
Clarity:
VS
Content:
1 pc
Price:
$
3.87
Item in Stock
More Options & Item Details
ID:
739541
Weight:
1.10ct
Size:
8 x 6 mm (calibrated)
Clarity:
VVS-VS
Content:
1 pc
Price:
$
9.90
Item in Stock
More Options & Item Details
ID:
609043
Weight:
3.19ct
Size:
11 x 9 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
58.96
Item in Stock
More Options & Item Details
ID:
718302
Weight:
0.03ct
Size:
2 mm (calibrated)
Clarity:
Opaque
Content:
1 pc
Price:
$
28.80
Item in Stock
More Options & Item Details
ID:
604024
Weight:
18.46ct
Size:
27.5 x 16.1 mm
Clarity:
Opaque
Content:
1 pc
Price:
$
19.08
Item in Stock
More Options & Item Details
ID:
528802
Weight:
1.14ct
Size:
6.5 x 5.1 mm
Clarity:
VVS-VS
Content:
1 pc
Price:
$
75.24
Item in Stock
More Options & Item Details
ID:
731029
Weight:
20.11ct (total)
Size:
20.9 x 14.4 mm
Clarity:
Opaque
Content:
2 pcs
Price:
$
13.75
Item in Stock
More Options & Item Details
ID:
711553
Weight:
1.12ct
Size:
6 mm (calibrated)
Clarity:
Transparent
Content:
1 pc
Price:
$
22.37
Item in Stock
More Options & Item Details
ID:
471621
Weight:
9.11ct
Size:
16.6 x 12.6 mm
Clarity:
Translucent
Content:
1 pc
Price:
$
84.18
Item in Stock
More Options & Item Details
ID:
556114
Weight:
2.70ct (total)
Size:
9 x 7 mm (calibrated)
Clarity:
Translucent
Content:
2 pcs
Price:
$
102.32
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 -> 9
Nothing bad to report. Everything is as expected. The gems and the price are all very good.
Posted By Dafanatic in August, 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
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
It's mostly good, only some item's are easier to find through the search than the menu
Posted By Wayne 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
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
My experience was done with ease
Posted By Barb in October, 2025
Source: Bizrate
Overall Rating -> 8
Excellent selection of stones -including ones I had never heard of before -nice site and fairly easy to use
Posted By DrD in May, 2025
Source: Bizrate
Overall Rating -> 10
love these guys been ordering since 2000 maybe
Posted By JHT in April, 2025
Source: Bizrate