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 2.38 Carat Diamond
This 2.38 diamond will appear about the size shown in the photo, for an average-sized woman's finger. This 2.38 carat round diamond has a diameter of about 8.7 mm as shown in the illustration. I have used the average engagement ring size, a size six, for the illustration, which has an internal diameter of 16.5 mm or 0.65 inches.
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The woman's hand pictured has quite long and slender fingers - which may not be what yours look like - if your fingers are differently shaped, be aware that a diamond engagement ring may look quite different when worn. Try and avoid making the mistake I made of looking at a potential diamond engagement ring placed on my own, large male finger - remember that it is going to go on a usually smaller and more petite female hand, where it will likely not shrink quite as much as when placed on a male hand.
Go searching for diamonds this size at James Allen by clicking on the banner below and dragging the carat slider to the appropriate setting:
