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).
Princess Shape, 2.00 Carat Diamond Size on Hand
This page gives you an idea of how large a 2.00 carat size princess shape stone will appear when seen on the female hand. The exact size of a 2.00 carat size princess shape diamond will vary depending on the depth of cut, but is usually in the ballpark of around 7.7 mm along one square edge. The illustration on this page shows an L 1/2 ring size; this is around the average size for a female.
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Photos can sometimes be a little dependent on the viewer - I've tried to make this one as clear as possible, but remember seeing the diamond in person will give you a very different judgement of size to examining it on the web. Digits can be all different sizes, which should factor in to your decision regarding diamond size and shape.
