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Gemtype Color Shape Weight Size Clarity Price Origin
You Selected (2220): 4 Carat Gems Clear All
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Lively Green Peridot Gem - 4.5ct Pear Facet (ID: 442946)

Pear Green Peridot

4.5ct
12.9 x 8.6 mm
$ 667.01
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Bluish White Rainbow Moonstone Gem - 4.3ct Pear Cabochon (ID: 472156)

Pear White Rainbow Moonstone

4.3ct
14.2 x 7.1 mm
$ 34.48
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Black Star Sapphire Gem - 4.3ct Oval Cabochon (ID: 470379)

Oval Black Star Sapphire

4.3ct
10.8 x 8.8 mm
$ 86.40
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Lively Green Peridot Gem - 4.2ct Heart Facet (ID: 385902)

Heart Green Peridot

4.2ct
10.4 x 9.4 mm
$ 268.29
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Orange Spessartite Garnet Gem - 4ct Oval Facet (ID: 390531)

Oval Orange Spessartite Garnet

4ct
11.1 x 8.6 mm
$ 193.58
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2 pcs
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Swiss Blue Topaz Gem - 4.3ct Spherical (ID: 338468)

Sphere / Ball Blue Topaz

4.26 ct (total 8.52ctw)
7.8 mm
$ 66.02
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Yellow Cat's Eye Apatite Gem - 4.2ct Round Cabochon (ID: 494571)

Round Yellow Cat's Eye Apatite

4.2ct
9.1 mm
$ 29.26
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Blue Green Apatite Gem - 4.3ct Trillion Facet (ID: 500149)

Trillion Green Apatite

4.3ct
11.3 x 9.8 mm
$ 418.72
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Click for Product Video (417489)
Bright Golden Brown Tourmaline Gem - 4.1ct Cushion-Cut (ID: 417489)

Cushion Brown Tourmaline

4.1ct
8.9 x 8.3 mm
$ 609.00
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Click for Product Video (504021)
Brownish Orange Tourmaline Gem - 4.2ct Cushion-Cut (ID: 504021)

Cushion Orange Tourmaline

4.2ct
11.5 x 7.6 mm
$ 179.51
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Brown Cat's Eye Scapolite Gem - 3.8ct Oval Cabochon (ID: 484117)

Oval Brown Cat's Eye Scapolite

3.8ct
10.6 x 8 mm
$ 19.20
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Green Sapphire Gem - 4.1ct Oval Facet (ID: 458366)

Oval Green Sapphire

4.1ct
10.7 x 8.6 mm
$ 2,228.33
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Green Tourmaline Gem - 4.1ct Octagon Step Cut (ID: 384338)

Octagon / Emerald Cut Green Tourmaline

4.1ct
30 x 3.8 mm
$ 220.00
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Lively Green Peridot Gem - 4.2ct Pear Facet (ID: 442940)

Pear Green Peridot

4.2ct
11.8 x 9.1 mm
$ 629.54
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Pinkish Rose Tourmaline Gem - 4.2ct Octagon / Scissor Cut (ID: 508554)

Octagon / Emerald Cut Pink Tourmaline

4.2ct
14.8 x 5.6 mm
$ 291.20
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Purplish Pink Mystic Topaz Gem - 4.1ct Round Facet (ID: 487530)

Round Pink Mystic Topaz

4.1ct
10 mm
$ 32.17
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Green Actinolite Cat's Eye Gem - 4.1ct Round Cabochon (ID: 485913)

Round Green Actinolite Cat's Eye

4.1ct
10.6 mm
$ 62.70
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Light Blue Aquamarine Gem - 4.3ct Oval Facet (ID: 408446)

Oval Blue Aquamarine

4.3ct
13.7 x 8.1 mm
$ 357.00
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Greenish Blue Aquamarine Gem - 4.4ct Oval Portuguese-Cut (ID: 450914)

Oval Blue Aquamarine

4.4ct
10 x 8.8 mm
$ 370.44
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Yellowish Green Tourmaline Gem - 4.1ct Oval Facet (ID: 417493)

Oval Green Tourmaline

4.1ct
11.2 x 8.8 mm
$ 489.60
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Blue Sapphire Gem - 3.9ct Oval Facet (ID: 487094)

Oval Blue Sapphire

3.9ct
10.6 x 8.7 mm
$ 6,515.39
Item in Stock
4 Carat Gems
Buy gems by carat weight. Shop from our extensive range of beautiful, natural 4 carat gems. Browse the largest selection of natural, loose, colored gemstones available in 4 carats. Our large gemstone selection includes many popular gem types, such as amethyst, aquamarine, topaz, emerald and garnet, and lesser-known gems, including sphene, sillimanite and sphalerite. 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 'peridot' to see all of our 4-carat peridot gems. Select 'blue' to shop for 4-carat blue gems. You can also filter by single, pairs, lots, faceted gems or cabochons by using the check boxes at the top.
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Gem select is the most trustworthy web site for gems. What I see in the picture is exactly what I get. Size is indicated by carat weight, and not the picture size, as they are trying to give an up close view of the gem I am hoping to buy. It was so easy to find the stones I was looking for at a price I could afford.
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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