Natural Untreated Gemstones
Discover genuine untreated gemstones selected for natural beauty, rarity, and authenticity.
|
Bi-color Natural Untreated Gemstones
|
Black Natural Untreated Gemstones
|
Blue Natural Untreated Gemstones
|
Brown Natural Untreated Gemstones
|
Golden Natural Untreated Gemstones
|
Gray Natural Untreated Gemstones
|
Green Natural Untreated Gemstones
|
Multicolor Natural Untreated Gemstones
|
Orange Natural Untreated Gemstones
|
Pink Natural Untreated Gemstones
|
Purple Natural Untreated Gemstones
|
Red Natural Untreated Gemstones
|
Turquoise Natural Untreated Gemstones
|
Violet Natural Untreated Gemstones
|
White Natural Untreated Gemstones
|
Yellow Natural Untreated Gemstones
|
Single |
Pairs |
Lots |
Faceted |
Cabochons |
0.28ct Yellow Beryl, Oval, VS
5 x 4 mm (calibrated)
$ 5.35
0.91ct Yellow Beryl, Oval, VVS-VS
7.8 x 5.7 mm
$ 18.13
4.14ct White Topaz, Round, VVS-VS
9 mm (calibrated)
$ 22.68
0.22ct Pink Morganite, Round, VVS-VS
4.2 mm
$ 9.13
0.12ctw Black Diamond, Square, Opaque
1.9 x 1.8 mm
$ 59.76
0.08ctw Black Diamond, Round, Opaque
2.1 mm (calibrated)
$ 63.74
3.74ctw Multicolor Andalusite, Round, VS
3.5 mm (calibrated)
$ 164.27
0.08ctw Black Diamond, Round, Opaque
1.9 mm (calibrated)
$ 23.25
0.43ct Pink Morganite, Oval, VVS-VS
6.1 x 4.3 mm
$ 17.85
4.38ct Pink Morganite, Pear Shape, Transparent
13.5 x 9.7 mm
$ 47.99
1.24ct Yellow Beryl, Trillion, VVS-VS
8 x 8 mm (calibrated)
$ 24.70
0.56ct Green Cat'S Eye Alexandrite, Oval, Opaque
5 x 4.2 mm
$ 116.20
4.57ctw Multicolor Andalusite, Round, VS
3.5 mm (calibrated)
$ 200.93
1.33ct Yellow Beryl, Oval, VVS-VS
8 x 6 mm (calibrated)
$ 29.14
0.92ct Yellow Beryl, Oval, VVS-VS
8 x 6 mm (calibrated)
$ 18.33
0.94ct Yellow Beryl, Emerald Cut, VS
7.2 x 5.3 mm
$ 20.60
7.53ct Black Spinel, Round, Opaque
12 mm (calibrated)
$ 24.75
1.38ct Violet Spinel, Cushion, VS
6.3 x 6 mm
$ 81.85
0.84ct Purple Spinel, Cushion, VVS-VS
6.2 x 5 mm
$ 30.04
4.28ct White Topaz, Heart, VVS-VS
10 x 10 mm (calibrated)
$ 35.52
0.28ct White Topaz, Marquise, VS
5.9 x 3 mm
$ 1.27
2.24ct Yellow Golden Beryl, Round, VVS
9 mm (calibrated)
$ 53.99
15.50ct Green Cat'S Eye Aquamarine, Oval, Transparent
16.1 x 14.3 mm
$ 272.39
0.48ct Yellow Chrysoberyl Cat'S Eye, Oval, Translucent
5.5 x 3.5 mm
$ 14.34
- Page 1
- Page 2
- Page 3
- Page 4
- Page 5
- Page 6
- Page 7
- Page 8
- Page 9
- Page 10
- Page 11
- Page 12
- Page 13
- Page 14
- Page 15
- Page 16
- Page 17
- Page 18
- Page 19
- Page 20
- Page 21
- Page 22
- Page 23
- Page 24
- Page 25
- Page 26
- Page 27
- Page 28
- Page 29
- Page 30
- Page 31
- Page 32
- Page 33
- Page 34
- Page 35
- Page 36
- Page 37
- Page 38
- Page 39
- Page 40
- Page 41
- Page 42
- Page 43
- Page 44
- Page 45
- Page 46
- Page 47
- Page 48
- Page 49
- Page 50
- Page 51
- Page 52
- Page 53
- Page 54
- Page 55
- Page 56
- Page 57
- Page 58
- Page 59
- Page 60
- Page 61
- Page 62
- Page 63
- Page 64
- Page 65
- Page 66
- Page 67
- Page 68
- Page 69
- Page 70
- Page 71
- Page 72
- Page 73
- Page 74
- Page 75
- Page 76
- Page 77
- Page 78
- Page 79
- Page 80
- Page 81
- Page 82
- Page 83
- Page 84
- Page 85
- Page 86
- Page 87
- Page 88
- Page 89
- Page 90
- Page 91
- Page 92
- Page 93
- Page 94
- Page 95
- Page 96
- Page 97
- Page 98
- Page 99
- Page 100
- Page 101
- Page 102
- Page 103
- Page 104
- Page 105
- Page 106
- Page 107
- Page 108
- Page 109
- Page 110
- Page 111
- Page 112
- Page 113
- Page 114
- Page 115
- Page 116
- Page 117
- Page 118
- Page 119
- Page 120
- Page 121
- Page 122
- Page 123
- Page 124
- Page 125
- Page 126
- Page 127
- Page 128
- Page 129
- Page 130
- Page 131
- Page 132
- Page 133
- Page 134
- Page 135
- Page 136
- Page 137
- Page 138
- Page 139
- Page 140
- Page 141
- Page 142
- Page 143
- Page 144
- Page 145
- Page 146
- Page 147
- Page 148
- Page 149
- Page 150
- Page 151
- Page 152
- Page 153
- Page 154
- Page 155
- Page 156
- Page 157
- Page 158
- Page 159
- Page 160
- Page 161
- Page 162
- Page 163
- Page 164
- Page 165
- Page 166
- Page 167
- Page 168
- Page 169
- Page 170
- Page 171
- Page 172
- Page 173
- Page 174
- Page 175
- Page 176
- Page 177
- Page 178
- Page 179
- Page 180
- Page 181
- Page 182
- Page 183
- Page 184
- Page 185
- Page 186
- Page 187
- Page 188
Why Buy Natural Untreated Gemstones from GemSelect?
- Trusted Worldwide Since 2003
- Supplying natural gemstones to jewelers and collectors in 120+ countries
- Verified natural gemstones
- View All GemSelect Reviews on Bizrate
- Secure checkout and insured worldwide delivery
- 30-day returns and satisfaction guarantee
Why Choose Untreated Gemstones?
Untreated gemstones are valued for their natural color and clarity without artificial enhancement. Many buyers prefer these gems for authenticity, rarity, and long-term value.
Natural Loose Untreated Gems Online
Shop loose untreated gemstones online at GemSelect with confidence. Browse sapphires, rubies, spinels, aquamarine, garnet, tourmaline, and more with full disclosure.
Untreated Gemstones for Jewelry
Natural untreated gems are excellent for rings, earrings, pendants, and custom jewelry. Their original beauty makes every piece unique and meaningful.
Popular Untreated Gemstone Types
Popular choices include untreated sapphire, ruby, spinel, garnet, tourmaline, zircon, aquamarine, and many collector stones in a wide range of colors.
Certified Natural Gemstones
Many buyers choose untreated gemstones with gemological reports for added confidence. Certification can confirm identity and indicate whether treatments are present.
Collector Quality Untreated Gems
Collectors appreciate untreated gemstones because naturally fine examples are rarer than treated material. These stones can be especially desirable when color and clarity are strong.
Calibrated Untreated Gemstones
We also offer calibrated untreated gemstones in popular sizes suitable for standard jewelry settings, making custom designs easier and faster.
Worldwide Shipping from GemSelect
GemSelect offers secure online ordering, detailed product images, and worldwide delivery so you can shop untreated gemstones from anywhere.
Learn more about gemstone treatments, identification, and care on our Gemstone Information Pages.
FAQs
What does untreated gemstone mean?
An untreated gemstone has not undergone enhancement processes such as heating, dyeing, filling, coating, or diffusion to improve appearance.
Are untreated gemstones more valuable?
Often yes, especially in sapphire, ruby, and other premium gems where fine untreated stones are rarer than treated examples.
How can I verify a gemstone is untreated?
Independent laboratory certification is the best way to verify whether a gemstone is natural and untreated.
Which gemstones are commonly sold untreated?
Spinel, garnet, zircon, tourmaline, aquamarine, and some sapphires or rubies are often available untreated depending on source and quality.
Are all untreated gemstones natural?
Natural untreated gemstones are mined stones that have not been enhanced after cutting. Always buy from trusted sellers with clear disclosure.
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10 
My experience has always been fantastic. Today I saved 6 gems to email a customer looking for a particular color blend to fit into an east west setting, so her options were limited, but we found one she wanted, deleted all the others in the cart and order the gem she selected. It was helpful to be able to put them in the cart so I could save them until she selected the one she wanted without having to research all of them again.
Overall Rating -> 10
Easy to use website
Overall Rating -> 8 
The website was easy to use and there were a lot of good options, I was satisfied.
Overall Rating -> 10
It's always a pleasure doing business with Gem Select. Outstanding products ant very reasonable prices. Thank You One and All.
Overall Rating -> 9 
It was great!
Overall Rating -> 10
I needed a very specific color of tourmaline and Gem Select had it. I had to get the client to agree and then ordered the stone. It arrived better than pictured and we all were very happy.
