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).

0.92 Carat Weight Princess Diamond Shown on a Hand

If you've got a ring in your possession and you know the size, use it to compare with the US size 6 ring shown in the image on this page - this will assist you in getting a better idea of the diamond size shown in the photo. Pictures can sometimes be notoriously deceptive - I've tried to make this one as clear as possible, but don't forget viewing the stone in the flesh may give you a very different judgement of size to examining it on the web.

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The visual size for this 0.92 carat princess diamond will depend not just on the carat weight but as well on the width to length ratio of the ring finger it is placed on.