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Buy 16 Carat Gems

(543)
Gem Type Weight Size Clarity Price Origin
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Golden-Orange Fire Opal Gem - 15.8ct Oval Cabochon (ID: 380401)

Oval Golden Fire Opal

15.8ct
22.3 x 14.9 mm
$ 341.22
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Multicolor Opal Gem - 15.7ct Oval Cabochon (ID: 462134)

Oval Multicolor Opal

15.7ct
19.5 x 17.1 mm
$ 632.89
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Multicolor Ammolite Gem - 15.6ct Teardrop Cabochon (ID: 509243)

Fancy Multicolor Ammolite

15.6ct
26 x 14.1 mm
$ 588.37
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Dark Orange Spessartite Garnet Gem - 15.5ct Oval Facet (ID: 486941)

Oval Orange Spessartite Garnet

15.5ct
15.3 x 12.9 mm
$ 621.20
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Pear Green Prehnite Gem - 16ct Carved Oval Cabochon (ID: 474443)

Oval Green Prehnite

16ct
17.5 x 13.4 mm
$ 33.68
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Light Pink Kunzite Gem - 16.5ct Cushion-Cut (ID: 438122)

Cushion Pink Kunzite

16.5ct
14 x 12.5 mm
$ 330.80
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Bubblegum Pink Rose Quartz Gem - 16.1ct Asscher Cut (ID: 395325)

Octagon / Emerald Cut Pink Rose Quartz

16.1ct
15.5 x 15.4 mm
$ 80.65
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Very Light Purple Pink Kunzite Gem - 16.2ct Octagon / Scissor Cut (ID: 453469)

Octagon / Emerald Cut Pink Kunzite

16.2ct
15.3 x 12.1 mm
$ 323.60
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Bluish Violet Chalcedony Gem - 16.1ct Pear Cabochon (ID: 474814)

Pear Violet Chalcedony

16.1ct
24.4 x 15.9 mm
$ 19.36
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Multicolor Ammolite Gem - 15.6ct Fancy Cabochon (ID: 452858)

Fancy Multicolor Ammolite

15.6ct
22.6 x 16.9 mm
$ 155.50
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Multicolor Quartz With Marcasite Gem - 16.8ct Fancy Cabochon (ID: 521238)

Fancy Multicolor Quartz With Marcasite

16.8ct
23.4 x 14 mm
$ 100.86
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Multicolor Jasper Gem - 16.9ct Oval Cabochon (ID: 481158)

Oval Multicolor Jasper

16.9ct
27.7 x 18.5 mm
$ 12.69
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Deep Golden Orange Citrine Gem - 15.9ct Pear Facet (ID: 544575)

Pear Golden Citrine

15.9ct
19.9 x 15.1 mm
$ 90.00
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Greenish White Jadeite Gem - 16.6ct Oval Cabochon (ID: 384631)

Oval White Jadeite

16.6ct
20.9 x 16.7 mm
$ 41.38
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Royal Purple Pink Kunzite Gem - 16.7ct Marquise Cabochon (ID: 472080)

Marquise Pink Kunzite

16.7ct
25.2 x 10.2 mm
$ 50.16
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Multicolor Ammolite Gem - 15.5ct Fancy Cabochon (ID: 281107)

Fancy Multicolor Ammolite

15.5ct
30.2 x 11.4 mm
$ 155.40
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Very Light Golden-Brown Rutile Quartz Gem - 15.7ct Oval Cabochon (ID: 402476)

Oval Golden Rutile Quartz

15.7ct
20.5 x 13.9 mm
$ 50.53
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Dark Orange-Gold Citrine Gem - 16.8ct Oval Facet (ID: 397744)

Oval Golden Citrine

16.8ct
19.8 x 13 mm
$ 100.62
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Medium Violet Amethyst Gem - 16.3ct Half-Drilled Briolette (ID: 456925)

Briolette Violet Amethyst

16.3ct
20.5 x 11.1 mm
$ 65.36
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Multicolor Agate Geode Gem - 15.9ct Fancy Crystal Cluster (ID: 446964)

Fancy Multicolor Agate Geode

15.93 ct (total 31.86ctw)
23.1 x 17.9 mm
$ 79.65
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Black with Gold Sheen Obsidian Gem - 16.3ct Oval Cabochon (ID: 603886)

Oval Golden Obsidian

16.3ct
28.6 x 15.7 mm
$ 13.04
Item in Stock

About 16 Carat Gems

Buy gems by weight. Shop from our extensive range of beautiful, natural 16-carat gems. Browse the largest selection of natural loose colored gemstones available in 16 carats. Our large gemstone selection includes many popular gem types, such as amethyst, citrine, topaz and turquoise, and lesser-known gems, including ruby-zoisite, ammolite and maw-sit-sit. From here, you can use our filters at the top or on the left-hand side to find gems by gem type, color, shape, cut and so on. For example, select 'tourmaline' to see all of our 16-carat tourmaline gems. Select 'multicolor' to shop for 16-carat multicolor gems. You can also filter by single, pairs, lots, faceted gems or cabochons by using the check boxes at the top.
Certified Customer Reviews
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The stones i received were the exact ones in the pictures and they arrived much sooner than I expected!
Posted By TessVander in November, 2020
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Overall Rating -> 9 star ratings
Found exactly what I was looking for, but I don't know how to tell the size. I'll have my jeweler nake it fit.
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Overall Rating -> 10 star ratings
all good
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Article Categories

Total Number of Articles: 1382

More Shapes
  • Asscher Cut
  • Baguette / Scissor Cut
  • Baguette Cabochon
  • Baguette Checkerboard
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  • Baguette Step Cut
  • Baguette Sugarloaf Cabochon
  • Ball Facet
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  • Cushion Buff-Top
  • Cushion Cabochon
  • Cushion Carved Medusa Cameo
  • Cushion Checkerboard
  • Cushion Checkerboard (double sided)
  • Cushion Concave Fantasy Cut
  • Cushion Crystal Cluster
  • Cushion Mixed Cut
  • Cushion Rose-Cut
  • Cushion Shape Sugarloaf Cabochon
  • Cushion Sugarloaf Cabochon
  • Cushion-Cut
  • Diamond-Cut
  • Drilled Faceted Sphere
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  • Fancy Bicone
  • Fancy Cabochon
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  • Fancy Cut
  • Fancy Facet
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  • Fancy-Cut
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  • Flower Carving
  • Flower-Cut
  • Half Heart Cabochon
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  • Half Moon Cabochon
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  • Heart Buff-Top
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  • Marquise Concave Cut
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  • Octagon / Scissor Cut
  • Octagon Buff-Top
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  • Octagon Checkerboard
  • Octagon Concave Cut
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  • Octagon Step Cut
  • Oval Bar Cut
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  • Oval Cabochon
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  • Oval Carved Cameo
  • Oval Checkerboard
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  • Oval Concave Cut
  • Oval Crystal Cluster
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  • Pencil
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  • Round Buff-Top
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  • Round Concave Cut
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  • Round Facet
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  • Shark Fin Cabochon
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  • Trillion Crystal Cluster
  • Trillion Facet
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  • Trillion Shape Sugarloaf Cabochon
  • Undrilled Briolette Teardrop
Popular Gemstones
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All Gemstones (146)
A B C D E F G H I J K L M N O P Q R S T V Z
  • Actinolite Cat's Eye
  • Agate
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Size and Weight

Gems are always measured in Millimeter (mm)

Dimensions are given as;
length x width x depth,
except for round stones which are;
diameter x depth

Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size

Note: 1ct = 0.2g

Size Comparison Chart