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).
2.55 Carat Diamonds
When someone describes a diamond as being 2.55 carats, they mean it is a 255 point diamond.
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The cost per carat value is a numerical number that provides you with a sense of how much the diamond is worth compared to other diamonds of similar properties.
The width of the diamond grows much more slowly than the carat weight of a diamond.
Because diamonds with the carat weight of one or two carats are very very popular, it's common for shops and online stores to raise the prices. You can save money by looking for diamonds which don't have the sizes. It can be humbling to compare the 2.55 carat weight with famous diamonds such as the akbar shah diamond, which came in at a final cut carat weight of 72 carats.
I never hated a man enough to give him his diamonds back. Zsa Zsa Gabor .
People say the four cs for a reason - diamond carat size is just one of the four cs and the others are arguably just as important in determining how 'attractive' and 'good' a diamond is.