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 2.11 Carat Princess Shape Diamond Size on Hand
The precise size of a 2.11 carat size princess shape diamond depends on other factors such as cut, but will typically be around 7.8 mm along one of the straight edges of the diamond. The illustration on this page has a ring of L 1/2 ring size; this is around the average size for a female. Some advice for how to use the information on this page is to initially narrow down your size range, and then to go into stores and try diamonds out in person, armed with this prior knowledge.
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Later after the diamond is purchased, it's likely you might be pleasantly surprised by how much larger the diamond appears on the female hand, than when seen in isolation.
