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 2.08 Carat Diamond
If you're thinking about how big a 2.08 carat diamond appears when worn, here's a picture which provides a visual guide to this diamond's size. The ring shown in the picture is a US size 6, which is the same as an L 1/2 ring size in countries such as Britain and Australia.
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It is good to be cautious when looking at a picture - it can't be completely representative of all finger and hand types - you're best off getting an idea in store with an actual ring. The ratio between the length of your ring finger and the width of your finger will play a pivotal role in the final appearance of a diamond on your hand. If you've been stressing about how expensive diamonds are but are still really set on getting one, here is something to cheer you up - the diamonds often look bigger once placed on the woman's hand, especially if her hand is small and petite.