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).
2.18 Carat Diamonds
2.18 carats worth of diamond gives you a stone that weighs precisely 436 mg. A 2.18 carat diamond is about 8.49 mm this in size.
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Many men when shopping for a diamond engagement ring will look at how big the diamond looks in comparison to their own hand, when they really should be looking at how big the diamond looks in comparison to a female shop assistant's hand who has a hand similar in size to their prospective fiance.
Better a diamond with a flaw than a pebble without. Chinese Proverb .
Ever looked at a similar carat size of diamond and another gemstone and wondered why the stones appeared so different in size? This is undoubtedly because different types of stones have different specific gravity densities, leading to this discrepancy in size.
You shouldn't really worry about this, but the average size of a diamond in a diamond engagement ring, at least within the united states, is about half a carat. In terms of diamond properties, the carat weight of the diamond should be considered alongside the many other characteristics of the diamond, in order to find a diamond which is balanced and hence not let down by being of poor quality in one of these departments.