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).

0.40 Carat F Color VS1 Clarity Premium Cut Round Cut Diamond

This VS1 clarity diamond is a slight improvement over a VS2 clarity diamond, the step up in clarity grading comes from there being fewer or smaller inclusions, or because the location of the inclusion is more favourable to the appearance of the diamond (for example if it is hidden from sight).

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Spending only $1000 on the diamond, you will be able to save more money to use for other expenses, for example a wedding reception. The visual appearance of this diamond will be quite good due to its Premium cut, although inferior to the more costly higher-rated cut grades. F color diamonds are virtually colorless, meaning they are part of the pure white group of diamonds. If you look at this 0.40 carat stone and immediately say, "that stone is too small", consider whether you can compromise by lowering other properties, for example color or cut so you can get for a bigger diamond.

Despite the fact this VS1 clarity diamond is pretty much guaranteed to be "eye-clean", if you're looking to save some money, you should check out SI clarity diamonds. Try to find a diamond that is eye-clean in a photo or when seen in the flesh.

Pay attention to this diamond's girdle characteristic - "" - and if you don't know about girdle thickness, try reading my short explanation of girdle thicknesses.

Shape: Round

Carat weight: 0.4

Cut: Premium

Color: F

Clarity: VS1

Price: $1000

Certificate: GIA

Depth: 62.8%

Table: 58.0%

Polish: Very Good

Symmetry: Very Good


Culet: None

Fluorescence: None

Measurements: 4.64*4.67*2.92

Item number: 1350511

Click here to see the diamond at James Allen.

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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 .