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 Size of 2.77 Carat Princess Shape Diamond
Size doesn't mean much until you witness it in context - this article provides a human hand as "context" for the apparent size of a 2.77 carat size diamond of princess shape. A princess shape stone with a carat size of 2.77 is typically about 14.9 mm long on the side, although this can depend on the depth of the cut.
The illustration in this page has a ring of L 1/2 ring size; this is around the average size for a female.
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The size of a female hand can vary hugely - just look around you when you're next in public - so this picture can only show the apparent diamond size for a typical size ring.
The apparent size of this 2.77 carat weight princess-shaped diamond will be affected not only by the carat weight but as well on the width to length ratio of the ring finger the diamond ends up on.
