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).

What Does a 2.78 Carat, Princess Shape Diamond Look Like on a Hand?

This page provides you with an idea of how large a 2.78 carat size princess shape stone will appear when seen on the female hand. When searching on the web for princess shape diamond sizes, you may pick up that the numbers are slightly different across different sites - this is because the size (15.2 mm for this 2.78 carat diamond) can depend on the cut, not just the carat weight.

In order to provide you more of an idea of what's in this image, the ring shown is a US size 6, which is equivalent to an L 1/2 ring size in places like Australia or Britain.

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Long slender fingers will change how a diamond appears as much as the carat size of the diamond - so look beyond just considering the 2.78 carat weight of this princess diamond.