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 Diamond Sizes of a 1.68 Carat Princess Shape Diamond

The precise size of a 1.68 carat weight princess shape diamond will vary depending on the depth of cut, but will typically be around 7.2 mm along one of the straight edges of the diamond. While this picture will give you some concept of how large a diamond will appear viewed on the hand, remember that the size of the ring you pick or need could be quite different in size to that shown in this image.

Photos can sometimes be notoriously deceptive - this one is pretty clear cut, but don't forget seeing the stone in person will give you a very different impression of size to viewing it on the web.

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Long slender fingers will change how a diamond appears just as much as the diamond's carat weight - so consider other factors as well as the 1.68 carat weight of this princess stone. Months after you've purchased the diamond, you might be pleasantly surprised because the diamond appears larger on a woman's hand than you first thought, compared with when viewed by itself .