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).

0.90 Carat Diamond Actual Size

This 0.90 diamond will appear about the size shown in the picture, on a typical woman's finger. The picture shows a ring which is US size six; this is the same as an L 1/2 ring size in countries like Britain and Australia. Do not forget to consider not just the size of your hand as a whole, but in addition if you possess long and slim fingers or short and pudgy ones. Don't make the mistake I made of looking at a potential diamond engagement ring placed on my own, male finger - remember that it is going to go on a generally smaller and more petite female hand, which will make the diamond appear significantly larger.

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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