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).
0.06 Carat Diamonds
If you like playing with numbers, one analysis method you can use for examining diamonds is to divide the cost of the diamond by the number of carats to get the cost per carat metric. The apparent size of a diamond does not increase at the same rate as the diamond's carat size, leading to confusion quite often in stores.
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Manners must adorn knowledge and smooth its way in the world, without them it is like a great rough diamond, very well in a closet by way of curiosity, and also for its intrinsic value; but most prized when polished. Lord Chesterfield .
If you're willing to try a few things to get a bargain, one thing you can try is searching for a diamond which has a strange carat weight, such as 0.96 carats. Often diamonds with these strange carat weights can be picked up for a bargain because they are not as sought-after even though they are practically the same size as the more popular 1.00 carat diamonds.
Not all gemstones have the same density, leading to an often confusing fact that when you look at a one carat diamond and a one carat ruby, apart from differences in cut they will probably appear different in size due to the difference in their density. It can be humbling to compare the 0.06 carat weight with famous diamonds such as the akbar shah diamond, which came in at a final cut carat weight of 72 carats.
There are two tricks to avoid when comparing total diamond weight with the weight of an individual diamond - individual smaller diamonds are cheaper even if they add up to the same total weight as the single diamond, and smaller diamonds are often of poorer quality.
So how good do you think a 10 carat diamond which looks a horrible uneven black colour would appear on an engagement ring? Exactly - diamond buyers need to also consider other properties such as the colour of the stone, which is not picked correctly can negate any attractiveness of having a very large diamond.