Calibrated 16 x 12 mm Oval Shape Gemstones | GemSelect
Bi-color
Black Oval Shape 16x12 mm Gems
Blue Oval Shape 16x12 mm Gems
Brown Oval Shape 16x12 mm Gems
Golden
Gray
Green Oval Shape 16x12 mm Gems
Multicolor Oval Shape 16x12 mm Gems
Orange Oval Shape 16x12 mm Gems
Pink Oval Shape 16x12 mm Gems
Purple Oval Shape 16x12 mm Gems
Red Oval Shape 16x12 mm Gems
Turquoise Oval Shape 16x12 mm Gems
Violet Oval Shape 16x12 mm Gems
White Oval Shape 16x12 mm Gems
Yellow Oval Shape 16x12 mm Gems
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 (2)
Agate (3)
Amethyst (3)
Andesine Labradorite (1)
Apatite (3)
Aquamarine (3)
Black Opal (4)
Bloodstone (3)
Boulder Opal (1)
Coral (4)
Jadeite (1)
Jasper (2)
Lapis Lazuli (17)
Larimar (6)
Maw-Sit-Sit (5)
Moonstone (3)
Morganite (3)
Nuummite (1)
Opal (1)
Opal Triplet (1)
Pietersite (5)
Prehnite (2)
Pyrope Garnet (1)
Quartz (5)
Quartz With Marcasite (6)
Rose Quartz (1)
Ruby (13)
Rutile Quartz (1)
Seraphinite (1)
Spinel (18)
Star Garnet (1)
Star Ruby (1)
Star Sapphire (1)
Star Sunstone (3)
Strawberry Quartz (27)
Tanzanite (1)
Tiger's Eye (17)
Topaz (2)
Tourmaline (2)
Clear All
8.50ct White Rutile Quartz, Oval, Transparent
16 x 12 mm (calibrated)
$
23.29
View Gem
9.46ct Brown Tiger'S Eye, Oval, Opaque
16 x 12 mm (calibrated)
$
9.42
View Gem
14.54ct Brown Star Sunstone, Oval, Opaque
16 x 12 mm (calibrated)
$
120.68
View Gem
12.17ct Yellow Moonstone, Oval, Translucent
16 x 12 mm (calibrated)
$
23.87
View Gem
13.36ct Blue Topaz, Oval, VVS
16 x 12 mm (calibrated)
$
102.46
View Gem
18.43ct Green Maw-Sit-Sit, Oval, Opaque
16 x 12 mm (calibrated)
$
60.57
View Gem
9.13ct Pink Strawberry Quartz, Oval, Translucent
16 x 12 mm (calibrated)
$
70.02
View Gem
11.58ct Multicolor Agate, Oval, Opaque
16 x 12 mm (calibrated)
$
11.54
View Gem
17.86ct Yellow Star Sapphire, Oval, Opaque
16 x 12 mm (calibrated)
$
160.10
View Gem
12.15ct Red Ruby, Oval, Translucent
16 x 12 mm (calibrated)
$
319.48
View Gem
8.34ct Pink Strawberry Quartz, Oval, Translucent
16 x 12 mm (calibrated)
$
50.07
View Gem
8.13ct Multicolor Quartz With Marcasite, Oval, Transparent
16 x 12 mm (calibrated)
$
53.44
View Gem
5.72ct Multicolor Opal Triplet, Oval, Opaque
16 x 12 mm (calibrated)
$
142.43
View Gem
8.52ct Yellow Apatite, Oval, VS-SI
16 x 12 mm (calibrated)
$
254.58
View Gem
10.85ct Multicolor Agate, Oval, Opaque
16 x 12 mm (calibrated)
$
18.38
View Gem
11.10ct Yellow Apatite, Oval, VS-SI
16 x 12 mm (calibrated)
$
226.59
View Gem
9.22ct Pink Strawberry Quartz, Oval, Translucent
16 x 12 mm (calibrated)
$
55.36
View Gem
10.79ct Pink Rose Quartz, Oval, Transparent
16 x 12 mm (calibrated)
$
59.11
View Gem
8.66ct Brown Tiger'S Eye, Oval, Opaque
16 x 12 mm (calibrated)
$
8.62
View Gem
7.98ct Brown Tiger'S Eye, Oval, Opaque
16 x 12 mm (calibrated)
$
4.69
View Gem
10.40ct Brown Tiger'S Eye, Oval, Opaque
16 x 12 mm (calibrated)
$
10.36
View Gem
13.45ct Brown Star Sunstone, Oval, Opaque
16 x 12 mm (calibrated)
$
111.64
View Gem
18.30ct Red Ruby, Oval, Translucent
16 x 12 mm (calibrated)
$
473.90
View Gem
13.94ct Red Ruby, Oval, Translucent
16 x 12 mm (calibrated)
$
360.99
View Gem
Why Buy Oval Shape 16x12 Mm Gems 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
Gem Select has a user friendly website and the product is very good as is the price. The gems are described accurately and I always get what I think I'm getting.
Posted By Happy Customer in June, 2025
Source: Bizrate
Overall Rating -> 10
I had a very easy time navigating the web page and using filters to find what I was looking for. The varied selection was nice to see and pricing is clear and fair.
Posted By Mattick in May, 2026
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
Overall Rating -> 9
Easy to use. Many options to find the right gemstone
Posted By Liz in May, 2026
Source: Bizrate
Overall Rating -> 10
the selection is good as are the prices
Posted By Old man in August, 2025
Source: Bizrate
Overall Rating -> 9
I loved the selection of gemstones you have a to z
Posted By James in May, 2026
Source: Bizrate