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).

0.42 Carat F Color VS1 Clarity Premium Cut Round Cut Diamond

F color VS1 clarity - what else could you want? I don't think so unless you're super fussy, although perhaps a lower price, as there will be an increased cost associated with getting such nice qualities found in this stone.

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Shape: Round

Carat weight: 0.42

Cut: Premium

Color: F

Clarity: VS1

Price: $920

Certificate: GIA

Depth: 59.8%

Table: 58.0%

Polish: Good

Symmetry: Very Good

Girdle: Medium to slightly thick, faceted

Culet: None

Fluorescence: Strong

Measurements: 4.89*4.85*2.91

Item number: 1097832

Click here to see the diamond at James Allen.

Click here to search for other diamonds at James Allen.

Girdle thickness (for this diamond the girdle is "Medium to slightly thick, faceted") can play an significant role in the size presented by the diamond, which is detailed in my article about girdle thickness. For any diamond, a price of $920 really places it in the lowest price group of diamonds, even more so in the context of engagement rings. The chance in color between any neighbouring colors in the D-E-F range can only be detected in a specialist laboratory environment, with the significance that this F color diamond is indistinguishable when compared with diamonds rated only one color grade differently. Despite the fact this VS1 clarity diamond is pretty much guaranteed to be "eye-clean", if you're aiming to reduce expenditure, try checking out SI clarity diamonds. You can manually pick a diamond that is eye-clean in a photo or when seen in the flesh.

If you are checking out this diamond and considering whether to improve other characteristics of the diamond not related to size, you may wish to reduce the 0.42 carat weight of this diamond. Since this diamond is a Premium cut diamond, it offers excellent value for your dollar, not attracting the price premium of the higher cut gradings, while still providing decent optical performance.