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).

Diamond Size on Hand of a 1.54 Carat Diamond

You can use the 7.6 mm mean diameter for this 1.54 carat diamond by measuring the size of your finger to get an idea at home of how big the diamond would appear. The ring pictured is a typical size six ring, but bear in mind the ring you get could be significantly larger or smaller. Do not forget to take into account not just the overall size of your hand, but also whether you have long and thin digits or short and pudgy ones.

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If you are stressed about how expensive diamonds are but are still really set on getting one, here's one piece of good news - the diamonds invariably appear bigger when put on the woman's hand, especially if her hand is on the smaller side.

Go searching for diamonds this size at James Allen by clicking on the banner below and dragging the carat slider to the appropriate setting:

Actual Diamond Photos from JamesAllen