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).
Actual Princess Shape Diamond Sizes on Hand of a 1.37 Carat Diamond
This article gives you an idea of how large a 1.37 carat size princess shape diamond will appear when seen on the hand of a woman. To give you more of an idea of what's in this image, the ring pictured is a size six in the US sizing system, which is the same as an L 1/2 ring size in Britain or Australia.
Sponsored Links
You'll become more knowledgeable looking at diamond sizes online such as this 1.37 carat weight princess shape diamond, but nothing beats seeing it in person. If you're a male trying to calculate the appropriate diamond size to get your partner, don't forget that the stonewill usually appear a lot bigger on the hands of a woman, which are typically smaller.
