Searching for the perfect engagement ring, but not sure what it will look like with the center stone size that you've selected? Here are some images to help you choose the perfect sized center stone. We've listed the carat weight in diamond, as well as the diameter in millimeters. A one carat sapphire will have a smaller diameter than a one carat diamond, so keep an eye on the dimensions of your stone!
Here is a great image to help you visualize what different diameter stones look like.
For your easy reference, here are the equivalent diamond carat weights that correspond to the millimeter diameters.
Keep in mind that a 1 carat sapphire will have a smaller diameter than a 1 carat diamond, however, you can easily compare how a 6mm sapphire will look compared to a 6mm diamond, so keep the dimensions in mind!
Princess cut diamonds and sapphires have a different look. Here is a chart showing how big your square stone will look on your hand.
Again, keep in mind that a diamond and a sapphire with the same carat weight will have a different diameter!
2.0mm: 0.05 ct princess cut diamond
3.0mm: 0.15 ct princess cut diamond
3.5mm: 0.25 ct princess cut diamond
4.0mm: 0.40 ct princess cut diamond
5.0mm: 0.75 ct princess cut diamond
6.0mm: 1.20 ct princess cut diamond
7.0mm: 2.00 ct princess cut diamond
8.0mm: 3.20 ct princess cut diamond
Here are the equivalent diamond carat weights that correspond to the millimeter diameters of oval diamonds.
4x2mm: 0.10 ct oval cut diamond
5x3mm: 0.26 ct oval cut diamond
6x4mm: 0.50 ct oval cut diamond
7x5mm: 0.90 ct oval cut diamond
8x6mm: 1.50 ct oval cut diamond
9x7mm: 2.10 ct oval cut diamond
10x8mm: 3.00 ct oval cut diamond
11x9mm: 4.20 ct oval cut diamond
Here are the equivalent diamond carat weights that correspond to the millimeter diameters of pear diamonds.
4x2.5mm: 0.12 ct pear cut diamond
5x3mm: 0.21 ct pear cut diamond
6x4mm: 0.43 ct pear cut diamond
7x5mm: 0.77 ct pear cut diamond
8x6mm: 1.00 ct pear cut diamond
9x6mm: 1.5 ct pear cut diamond
10x7mm: 2.00 ct pear cut diamond
12x7mm: 2.50 ct pear cut diamond
14x8mm: 4.00 ct pear cut diamond
14x8mm: 5.00 ct pear cut diamond
Here are the equivalent diamond carat weights that correspond to the millimeter diameters of marquise diamonds.
4x2mm: 0.07 ct marquise cut diamond
5x2.5mm: 0.13 ct marquise cut diamond
6x3mm: 0.23 ct marquise cut diamond
7x3.5mm: 0.35 ct marquise cut diamond
9x4.5mm: 0.70 ct marquise cut diamond
10x5mm: 1.00 ct marquise cut diamond
11x5.5mm: 1.50 ct marquise cut diamond
13x6.5mm: 2.50 ct marquise cut diamond
14x7.5mm: 3.50 ct marquise cut diamond
Here are the equivalent diamond carat weights that correspond to the millimeter diameters of heart diamonds.
3.5mm: 0.15 ct heart cut diamond
4mm: 0.25 ct heart cut diamond
5mm: 0.50 ct heart cut diamond
6mm: 0.75 ct heart cut diamond
6.5mm: 1.00 ct heart cut diamond
8mm: 2.00 ct heart cut diamond
9mm: 3.00 ct heart cut diamond
10mm: 4.00 ct heart cut diamond
11mm: 5.00 ct heart cut diamond
We'd love to help you picture the stone size you have in mind, on the ring of your dreams. Just let us know what you are thinking of and we'll help you out with some pictures!