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).
1.88 Carat Weight Princess Diamond Shown on a Hand
The precise size of a 1.88 carat weight princess shape diamond depends on other factors such as cut, but will typically be around 7.6 mm along one of the straight edges of the diamond. 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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Fingers can be all different sizes, which should influence your decision about what shape and size of diamond to get. There's no need to freak out if diamonds and the costs are getting you down; since a diamond will most likely appear bigger on a woman's hand, the diamond size you need may be smaller than you think.
