Buy Big 16 Carat Natural Gemstones
Bi-color 16 ct Gemstones
Black 16 ct Gemstones
Blue 16 ct Gemstones
Brown 16 ct Gemstones
Golden
Gray 16 ct Gemstones
Green 16 ct Gemstones
Multicolor 16 ct Gemstones
Orange
Pink 16 ct Gemstones
Purple 16 ct Gemstones
Red 16 ct Gemstones
Turquoise 16 ct Gemstones
Violet 16 ct Gemstones
White 16 ct Gemstones
Yellow 16 ct 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:
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)
Tourmaline (8)
Clear All
16.81ct Multicolor Boulder Opal, Fancy, Opaque
28.8 x 13.1 mm
$
83.71
View Gem
16.82ct Multicolor Pietersite, Round, Opaque
19 mm (calibrated)
$
63.50
View Gem
16.97ct Turquoise Amazonite, Pear Shape, Opaque
18.6 x 17.6 mm
$
18.59
View Gem
16.81ct Multicolor Quartz With Marcasite, Fancy, Transparent
23.4 x 14 mm
$
110.51
View Gem
16.42ct Yellow Quartz, Round, VVS
18 mm (calibrated)
$
72.13
View Gem
16.29ct Green Quartz, Round, VVS
18 mm (calibrated)
$
64.78
View Gem
16.89ct Brown Moonstone, Round, Translucent
17 mm (calibrated)
$
46.26
View Gem
16.68ct Green Druzy Variscite, Fancy, Opaque
31.8 x 15.2 mm
$
70.77
View Gem
16.66ct Multicolor Ammolite, Fancy, Opaque
23.6 x 14.7 mm
$
182.53
View Gem
16.27ct Multicolor Ammolite, Fancy, Opaque
25 x 18 mm (calibrated)
$
178.25
View Gem
16.04ct Multicolor Amethyst Geode Slice, Fancy, Transparent
21.6 x 17.8 mm
$
15.14
View Gem
16.29ct Green Amazonite, Oval, Opaque
24.8 x 18.6 mm
$
16.55
View Gem
16.89ct Multicolor Ammolite, Fancy, Opaque
24.7 x 16.4 mm
$
185.05
View Gem
16.50ct Green Jadeite, Oval, Translucent
21.7 x 16.5 mm
$
54.23
View Gem
16.97ct Multicolor Ammolite, Fancy, Opaque
19.6 x 19.3 mm
$
169.02
View Gem
16.42ct Multicolor Agate, Oval, Opaque
17.7 x 15.6 mm
$
27.80
View Gem
16.99ct Purple Ruby-Zoisite, Flower Cut, Opaque
17.1 x 16.9 mm
$
20.65
View Gem
16.37ct Multicolor Coral, Pear Shape, Translucent
22.7 x 17.9 mm
$
53.80
View Gem
16.13ct Yellow Star Sapphire, Oval, Opaque
15.7 x 12.8 mm
$
144.59
View Gem
16.53ct Multicolor Agate, Oval, Opaque
15.8 x 14.7 mm
$
15.64
View Gem
16.21ct Multicolor Jasper, Oval, Opaque
25 x 18 mm (calibrated)
$
26.64
View Gem
16.42ct Gray Hematite, Baguette, Opaque
16.7 x 11.8 mm
$
16.00
View Gem
16.50ct Purple Ruby-Zoisite, Flower Cut, Opaque
16.8 x 16.5 mm
$
20.05
View Gem
16.14ct Green Jadeite, Oval, Translucent
18.9 x 15 mm
$
53.05
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
So far So good
Posted By VH-1 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
I have shopped at Gemselect for nearly 20 years. I especially like that you see pictures of the exact gem you are purchasing. You are a trusted source.
Posted By DNaber in October, 2025
Source: Bizrate
Overall Rating -> 10
Had a great experience and the prices are great
Posted By BuBx99 in November, 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
Great selection. Maybe too great i kept adding and deleting stuff because i found better looking ones
Posted By Edsor works in October, 2025
Source: Bizrate