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).
0.16 Carat Princess Shape Diamond Actual Size
The photo on this webpage shows the ballpark width of a 0.16 carat size princess shape diamond on the hand of a woman. The precise size of a 0.16 carat size princess shape diamond will vary depending on the depth of cut, but is usually in the ballpark of around 3.0 mm along one square edge. Some advice for how to use the information on this page is 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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If you're a male trying to work out the right size of diamond to get your partner, remember that the diamond will usually look a lot larger on her smaller, more petite hands.
