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).
1.86 Carat Diamonds
1.86 carats in a diamond gets you around 8.05 mm of diamond, give or take.
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Girdle thickness is a diamond property which many people never even think about, but which can critically affect how big the diamond appears to be.
There are hundreds of thousands of diamonds available online, which can be quite a daunting prospect if you're trying to narrow your choices down. One tip is to add another property of the diamond to the phrase that you're entering into your web browser - you could enter vs1 clarity alongside 1.86 carat diamonds. Depending on personal preference, people may choose to get a smaller diamond in order to get a higher colour grade, such as d, e or f. It's heartening to know (if you're a billionaire) that there are actually very large diamonds which are colourless, such as the centenary diamond, which is a grade d colour diamond that comes in at the whopping weight of 273 carats.
Five small diamonds that add up to one carat are generally not as valuable as a single diamond that weighs one carat, so be short not to compare a single diamond of carat weight 1.86 with a ring which has a total diamond weight of 1.86.
A fine quotation is a diamond on the finger of a witty person, but a pebble in the hands of a fool. Unknown Author .
Carat size is only one that property out of a number that you should be considering. You should also consider a diamond other properties such as cut, because this will have a drastic effect on how well the diamond sparkles.