Quick and Easy Buying Guide

Carat weight: 1 carat = 200 milligrams = 6.5 mm diameter. Doubling weight doesn't double diameter.

Diamond clarity: FL/IF/VVS/VS = super expensive, near perfect. SI = best value if you can check a photo for obvious inclusions (defects).


Color: D-G = colorless, expensive, only if you have money to burn. H-J = best value. Can go lower in gold metal settings than white metal.

Cut: Better cut ratings let more light into a diamond, making it sparkle more. Very important property, don't skimp here.

Set a budget and minimum cut (Premium). Go J color for gold and I/H for white metals. Go searching for SI1/SI2 clarity diamonds at James Allen. Pick a diamond with small/no inclusions. Choose a ring setting and buy it risk-free (60-day returns).

1.63 Carat Diamond Sizes on Hand

If you're thinking about how large a diamond with a 1.63 carat weight looks when worn, here's a picture which provides a visual guide to this diamond's size. An average round diamond with a 1.63 carat size has a diameter of 7.7 mm; bear in mind that this can change depending on the cut. This image shows a size L 1/2 ring (Britain and other countries ), which is the same as a US size 6 ring. Your fingers could be quite a bit thicker or thinner than the fingers of the woman in the photo, which are quite thin - keep in mind yours probably look quite different. If you are stressing about the cost of diamonds but still really want one, here is something to cheer you up - the diamonds invariably look bigger once put on the hand, especially in cases where her hand is on the smaller side.

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Go searching for diamonds this size at James Allen by clicking on the banner below and dragging the carat slider to the appropriate setting:

Actual Diamond Photos from JamesAllen