Buy Big 16 Carat Natural Gemstones
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Gemtypes in Category:
Agate (26)
Amazonite (4)
Amethyst (31)
Amethyst Geode Slice (3)
Ametrine (3)
Ammolite (40)
Black Opal (1)
Bloodstone (3)
Boulder Opal (11)
Chalcedony (4)
Charoite (2)
Cinnabar (3)
Coral (2)
Dendritic Agate (1)
Druzy Azurite (2)
Druzy Citrine (1)
Druzy Variscite (8)
Fossil Coral (2)
Hematite (6)
Howlite (6)
Jadeite (8)
Jasper (29)
Kunzite (1)
Labradorite (9)
Lapis Lazuli (3)
Larimar (6)
Malachite (1)
Maw-Sit-Sit (3)
Moonstone (2)
Mother of Pearl (6)
Nuummite (4)
Obsidian (3)
Onyx (1)
Opal (3)
Pietersite (4)
Prehnite (2)
Pyrope Garnet (2)
Quartz (14)
Quartz With Marcasite (7)
Rainbow Moonstone (16)
Rainbow Pyrite (5)
Rose Quartz (10)
Ruby (5)
Ruby-Zoisite (14)
Rutile Quartz (2)
Serpentine (1)
Smoky Quartz (1)
Spectrolite (1)
Spessartite Garnet (1)
Star Garnet (2)
Star Ruby (3)
Star Sapphire (2)
Tiger's Eye (4)
Tiger's Eye Matrix (1)
Topaz (14)
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16.71ct Multicolor Ammolite, Fancy, Opaque
26.7 x 14.1 mm
$
366.15
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16.54ct Multicolor Jasper, Oval, Opaque
32.4 x 13.4 mm
$
24.71
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16.31ct Black Tourmaline, Emerald Cut, Opaque
16.6 x 11.4 mm
$
81.22
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16.85ct Multicolor Agate, Oval, Opaque
17.1 x 14.5 mm
$
13.43
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16.49ct Purple Star Ruby, Oval, Opaque
15.8 x 13.6 mm
$
216.80
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16.31ct Yellow Quartz, Flower Cut, Transparent
18.6 x 18 mm
$
35.74
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16.76ct Multicolor Boulder Opal, Fancy, Opaque
29.1 x 12.2 mm
$
83.46
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16.80ct Yellow Quartz, Oval, VVS-VS
20 x 15 mm (calibrated)
$
36.81
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16.43ct Multicolor Ammolite, Fancy, Opaque
22.2 x 15.7 mm
$
163.64
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16.74ct White Rainbow Moonstone, Pear Shape, Transparent
21.3 x 15.6 mm
$
250.10
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16.63ct Gray Hematite, Marquise, Opaque
25.7 x 12.2 mm
$
16.22
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16.77ct Multicolor Rainbow Pyrite, Fancy, Opaque
25.2 x 15.4 mm
$
50.11
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16.21ct Red Star Garnet, Oval, Opaque
16.6 x 14 mm
$
15.99
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16.81ct Multicolor Jasper, Fancy, Opaque
18.2 x 18.7 mm
$
14.18
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16.94ct Multicolor Jasper, Pear Shape, Opaque
32.2 x 14.3 mm
$
37.12
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16.40ct Multicolor Jasper, Oval, Opaque
20 x 15 mm (calibrated)
$
9.71
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16.23ct Gray Jadeite, Oval, Translucent
20 x 15 mm (calibrated)
$
26.66
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16.90ct Multicolor Jasper, Oval, Opaque
22.1 x 16.2 mm
$
37.03
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16.50ct Blue Larimar, Oval, Opaque
20 x 15 mm (calibrated)
$
213.45
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16.38ct White Howlite, Oval, Opaque
22.5 x 17.1 mm
$
7.83
View Gem
16.73ct Bi-Color Ametrine, Oval, VS
18 x 13 mm (calibrated)
$
128.30
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16.43ct Yellow Quartz, Oval, VVS-VS
20 x 15 mm (calibrated)
$
36.01
View Gem
16.16ct Multicolor Jasper, Oval, Opaque
25.7 x 13.3 mm
$
11.32
View Gem
16.37ct Multicolor Ammolite, Fancy, Opaque
28.5 x 12.2 mm
$
179.35
View Gem
Why Buy 16 Ct Gemstones from GemSelect?
GemSelect Certified Store Reviews
GemSelect: Over 22 Years in the Gemstone Business! Thank you for trusting us with your purchase!
Overall Rating -> 10
Navigating the site was very easy and the photos of the exact gem you would be purchasing was well done.
Posted By HVeeder in February, 2026
Source: Bizrate
Overall Rating -> 10
Great selection of gems at a reasonable price
Posted By Curt in July, 2025
Source: Bizrate
Overall Rating -> 10
The citrine gems are beautiful. I appreciated that each stone was individually shown on the website so I could see exactly what I was getting. No mystery person selecting random stones for me. The documentation included with each gem was high quality as well. Great price and arrived as expected.
Posted By Jen in December, 2025
Source: Bizrate
Overall Rating -> 10
Very pleasant
Posted By Varun in June, 2026
Source: Bizrate
Overall Rating -> 10
My whole experience is great.
Posted By Ghs in November, 2025
Source: Bizrate
Overall Rating -> 9
The website was easy to use and informative of the selection of stones it has. I quickly found the right stone for me.
Posted By Guero in March, 2026
Source: Bizrate