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
15.34ctw Multicolor Jasper, Oval, Opaque
16 x 12 mm (calibrated)
$
16.80
View Gem
18.63ct Red Ruby, Oval, Translucent
16 x 12 mm (calibrated)
$
510.28
View Gem
8.72ct White Agate, Oval, Opaque
16 x 12 mm (calibrated)
$
13.80
View Gem
12.54ct Green Bloodstone, Oval, Opaque
16 x 12 mm (calibrated)
$
24.98
View Gem
15.31ct Multicolor Bloodstone, Oval, Opaque
16 x 12 mm (calibrated)
$
30.49
View Gem
9.93ct Black Tourmaline, Oval, Opaque
16 x 12 mm (calibrated)
$
49.45
View Gem
13.39ct Brown Star Sunstone, Oval, Opaque
16 x 12 mm (calibrated)
$
111.14
View Gem
11.12ct Yellow Quartz, Oval, Transparent
16 x 12 mm (calibrated)
$
13.06
View Gem
12.35ct Blue Lapis Lazuli, Oval, Opaque
16 x 12 mm (calibrated)
$
21.16
View Gem
15.81ct Green Bloodstone, Oval, Opaque
16 x 12 mm (calibrated)
$
31.49
View Gem
8.81ct Violet Amethyst, Oval, Transparent
16 x 12 mm (calibrated)
$
61.42
View Gem
7.36ct Pink Strawberry Quartz, Oval, Translucent
16 x 12 mm (calibrated)
$
46.30
View Gem
9.18ct Brown Tiger'S Eye, Oval, Opaque
16 x 12 mm (calibrated)
$
5.40
View Gem
20.64ctw Black Spinel, Oval, Opaque
16 x 12 mm (calibrated)
$
79.14
View Gem
9.08ct Blue Aquamarine, Oval, Translucent
16 x 12 mm (calibrated)
$
188.41
View Gem
7.71ct Pink Strawberry Quartz, Oval, Translucent
16 x 12 mm (calibrated)
$
48.50
View Gem
20.10ctw Multicolor Jasper, Oval, Opaque
16 x 12 mm (calibrated)
$
22.02
View Gem
22.04ctw Black Spinel, Oval, Opaque
16 x 12 mm (calibrated)
$
72.44
View Gem
22.02ctw Black Spinel, Oval, Opaque
16 x 12 mm (calibrated)
$
72.38
View Gem
13.54ct Red Ruby, Oval, Translucent
16 x 12 mm (calibrated)
$
356.03
View Gem
7.73ct Brown Tiger'S Eye, Oval, Opaque
16 x 12 mm (calibrated)
$
4.54
View Gem
9.70ct Violet Amethyst, Oval, Transparent
16 x 12 mm (calibrated)
$
57.97
View Gem
10.90ct Yellow Quartz, Oval, Transparent
16 x 12 mm (calibrated)
$
12.81
View Gem
8.14ct Pink Strawberry Quartz, Oval, Translucent
16 x 12 mm (calibrated)
$
51.19
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 -> 9
Fast and reliable service.
Posted By Zæck in December, 2025
Source: Bizrate
Overall Rating -> 10
Love beauty, color, quality, and price of these gems. Personal projects and will come here soon and everytime.
Posted By Darkstar in June, 2025
Source: Bizrate
Overall Rating -> 9
Had to get here via the Facebook page. Googling direct brought up an error message.
Posted By Chip in May, 2026
Source: Bizrate
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.
Posted By Tim W in February, 2026
Source: Bizrate
Overall Rating -> 10
Easy to use. No issues. Large selection of gems.
Posted By CLTCJH in February, 2026
Source: Bizrate
Overall Rating -> 10
Took a chance on purchasing my gemstones from Gemselect and was impressed. 10/10
Posted By KT in September, 2025
Source: Bizrate