Compare 1 Carat Trillion (7.74x7.74x3.1 mm) vs 1 Carat Radiant (5.78x5.78x3.7 mm) Diamonds

On this page, we'll be comparing a 1 carat trillion diamond with 7.74 x 7.74 x 3.1 mm dimensions to a 1 carat radiant diamond with 5.78 x 5.78 x 3.7 mm dimensions.

You'll be able to easily compare these two diamonds side-by-side and see how they each look on your finger and see the similarities and differences between them.

Example trillion diamond

Actual size

Shape	Trillion
Weight	1 carat (0.2g)
Dimensions	7.74 x 7.74 x 3.1 mm
Depth	40.1%
Length/Width Ratio	1
Face Up Area	37.14 mm2
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This diamond is well proportioned and looks like its carat weight.

Example radiant diamond

Actual size

Shape	Radiant
Weight	1 carat (0.2g)
Dimensions	5.78 x 5.78 x 3.7 mm
Depth	64%
Length/Width Ratio	1
Face Up Area	31.74 mm2
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This diamond is well proportioned and looks like its carat weight.

Actual Size Comparison Tool

The tool below allows you to see both of these diamonds in their actual size on a ring that you can customize to your finger size and ring settings. You can modify the settings to get the right skin tone, ring size, and type to give you a good idea of how the diamonds will look on your finger.

Make sure to check your screen size setting is correct to make the tool as accurate as possible.

Ring Style

Plain

• Plain
• Pave

Ring Color

Platinum

• Platinum
• Gold

Skin Tone

Medium

• Light
• Medium
• Olive
• Dark

Finger Length (mm)

Ring Width (mm)

Ring Diameter (mm)

USA 3 3¼ 3½ 3¾ 4 4¼ 4½ 4¾ 5 5¼ 5½ 5¾ 6 6¼ 6½ 6¾ 7 7¼ 7½ 7¾ 8 8¼ 8½ 8¾ 9 9¼ 9½ 9¾ 10 10¼ 10½ 10¾ 11 11¼ 11½ 11¾ 12 12¼ 12½ 12¾ 13 13¼ 13½ UK F F½ G G½ H H½ I J J½ K K½ L L½ M M½ N N½ O O½ P P½ Q Q½ R R½ S S½ T T½ U U½ V V½ W W½ X X½ Y Z Z½ -- Z1 -- Asia 4 5 -- 6 7 -- 8 -- 9 -- 10 -- 11 12 13 -- 14 -- 15 -- 16 -- 17 -- 18 -- 19 -- 20 21 22 -- 23 -- 24 -- 25 -- 26 -- 27 -- -- EU¹ 44 44¾ 45½ 46 46¾ 47¾ 48 48¾ 49 50 50½ 51 52 52½ 53 54 54½ 55 56 56½ 57 57½ 58 59 59½ 60 61 61½ 62 62¾ 63½ 64 64½ 65 66 66½ 67 68 68½ 69 70 70½ 71 EU² 4 4¾ 5½ 6 6¾ 7¾ 8 8¾ 9 10 10½ 11 12 12½ 13 14 14½ 15 16 16½ 17 17½ 18 19 19½ 20 21 21½ 22 22¾ 23½ 24 24½ 25 26 26½ 27 28 28½ 29 30 30½ 31

 

 

Side-by-Side Specifications

Choosing the perfect diamond will depend on the combination of the 4 C's: cut, color, clarity, and carat weight. You want to find the combination that will keep the price as low as possible while not having a negative impact on the diamond's appearance. The table below shows the specifications of both diamonds side-by-side so you can compare them.

You can click the link to visit the full buying guide for each diamond to find out more information about the 5 Cs and other buying factors to get the best value for your money.