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 0.22 Carat Princess Shape Diamond Size on Hand
The image on this webpage shows the ballpark size of a 0.22 carat weight princess shape diamond on the hand of a woman. Carat weight doesn't tell the whole story - the type of cut will also influence the apparent size of the diamond - for a 0.22 carat princess like this one, the size would be around 3.5 mm . If you have got a ring in your possession and you know the size, you can compare it to the US size six ring pictured - this will assist you in getting a better idea of the diamond size shown in the photo.
A good tip to follow is to use pictures like this one to initially narrow down your size range; then you can go into stores and try diamonds out in person, armed with this prior knowledge.
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Long slender fingers will change how a diamond appears as much as the diamond's carat weight - so consider other factors as well as the 0.22 carat weight of this princess diamond. Diamonds almost always look larger when you move them onto a woman's hand - so try to ask a female shop assistant to put one on instead of putting it on your hand, which is probably much larger.
