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).
2.57 Carat Diamonds
2.57 carats worth of diamond gives you a stone that weighs precisely 514 mg.
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A way of using numbers to help you compare diamonds is to calculate the cost per carat of diamond.
Is a handy hint - as well as searching for 2.57 diamonds, try starting your search by examining another property of the diamond, for instance the name of an online jewellery store you would be happy to buy a diamond from.
He who finds diamonds must grapple in mud and mire because diamonds are not found in polished stones. They are made. Henry B. Wilson .
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. It's interesting to note that while the small carat diamond (by small i mean one or two carats) may have only been discovered relatively recently, many of the spectacular large diamonds were found many hundreds of years ago, such as the regent diamond of france which was used by two of the king louis's, with a mighty size of 140 carats.
A large diamond which has a huge crack down the middle, or alternatively a big yucky looking inclusion, is not a good look - it looks like someone has gone for size and sacrificed all the other desirable properties of the diamond. Clarity, for example, can be just as important in picking a diamond.