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)
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Druzy Citrine (1)
Druzy Variscite (8)
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Jasper (29)
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Larimar (6)
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Prehnite (2)
Pyrope Garnet (2)
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Quartz With Marcasite (7)
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16.04ct Multicolor Jasper, Pear Shape, Opaque
25.1 x 14.4 mm
$
12.66
View Gem
16.09ct Blue Chalcedony, Pear Shape, Opaque
26.1 x 15.7 mm
$
40.07
View Gem
16.68ct White Rose Quartz, Flower Cut, Transparent
19.8 x 19.8 mm
$
36.55
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16.58ct Blue Larimar, Oval, Opaque
26.9 x 16.2 mm
$
181.65
View Gem
16.12ct White Howlite, Pear Shape, Opaque
23 x 18.3 mm
$
7.71
View Gem
16.93ct Violet Amethyst, Flower Cut, Translucent
17.3 x 16.5 mm
$
55.64
View Gem
16.75ct Multicolor Ruby-Zoisite, Baguette, Opaque
19.1 x 11.3 mm
$
41.72
View Gem
16.27ct Violet Amethyst, Oval, IF
20 x 15 mm (calibrated)
$
108.03
View Gem
16.45ct Violet Amethyst, Fancy, Transparent
22.2 x 15.9 mm
$
49.15
View Gem
16.11ct Red Ruby, Oval, Translucent
15 x 12.9 mm
$
423.60
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16.14ct Multicolor Coral, Oval, Translucent
23.9 x 18 mm
$
50.05
View Gem
16.98ct Multicolor Pietersite, Trillion, Opaque
23 x 22 mm
$
39.74
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16.94ct Purple Star Ruby, Oval, Opaque
16.1 x 13.6 mm
$
222.71
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16.54ct Black Obsidian, Pear Shape, Opaque
25.9 x 18.9 mm
$
27.18
View Gem
16.04ct Multicolor Agate, Round, Opaque
16 mm (calibrated)
$
27.16
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16.47ct Multicolor Jasper, Oval, Opaque
20 x 15 mm (calibrated)
$
11.55
View Gem
16.19ct Pink Rose Quartz, Oval, Transparent
20 x 14.2 mm
$
35.47
View Gem
16.17ct Violet Amethyst, Emerald Cut, VVS-VS
17.9 x 14.1 mm
$
112.74
View Gem
16.52ct Violet Amethyst, Cushion, VVS
20 x 15 mm (calibrated)
$
115.18
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16.18ct Multicolor Jasper, Marquise, Opaque
31.4 x 13.8 mm
$
28.19
View Gem
16.70ct Blue Topaz, Pear Shape, VVS-VS
21.3 x 13.4 mm
$
128.08
View Gem
16.49ct Yellow Quartz, Flower Cut, Transparent
18.7 x 15.7 mm
$
63.24
View Gem
16.67ct White Rainbow Moonstone, Pear Shape, Transparent
24.3 x 12.5 mm
$
249.05
View Gem
16.30ct Multicolor Boulder Opal, Cushion, Opaque
24.9 x 9.9 mm
$
113.64
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 -> 8
I've purchased things from GemSelect before. What you see is what you get, which is not always the case with gem sites online. You can find some good value with gem select, and I will buy from them again.
Posted By Meyeusername in March, 2026
Source: Bizrate
Overall Rating -> 10
I feel Gemselect is a trustworthy company to buy from
Posted By Becky in October, 2025
Source: Bizrate
Overall Rating -> 10
Loved the price and the quality and the certification options which is the main reason why I buy. The guarantee is also a great reason to use gem select.
Posted By Sal in July, 2025
Source: Bizrate
Overall Rating -> 9
Plan on purchasing on an ongoing basis. So far.....so good....
Posted By Jim in January, 2026
Source: Bizrate
Overall Rating -> 10
Always get a nice gemstone. Just like the picture. Never disappointed
Posted By Ron T in June, 2026
Source: Bizrate
Overall Rating -> 10
Very neat and to the point
Posted By Botha in March, 2026
Source: Bizrate