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).
2.39 Carat Size on Hand
This 2.39 diamond will appear about the size indicated in the illustration, for a typical woman's fingers. I've used the average engagement ring size, which is size 6, in the image, which has an internal diameter of 0.65 inches of 16.5 mm. It is good to be cautious when looking at a picture - it can't be entirely representative of all finger and hand types - you're best advised to get a bit of an idea in store by trying on actual rings with your partner. Do not forget to take into account not just the size of your hand as a whole, but also if you have long and thin digits or squatter ones.
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Go searching for diamonds this size at James Allen by clicking on the banner below and dragging the carat slider to the appropriate setting:
