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).

Pick for This Morning 0.42 Carat G Color VS1 Clarity Ideal Cut Round Cut Diamond

The VS1 clarity for this stone almost certainly means it will be eye-clean - so you shouldn't have to worry about checking for inclusions.

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Shape: Round

Carat weight: 0.42

Cut: Ideal

Color: G

Clarity: VS1

Price: $1050

Certificate: GIA

Depth: 60.2%

Table: 58.0%

Polish: Excellent

Symmetry: Excellent

Girdle: Thin to medium

Culet: None

Fluorescence: None

Measurements: 4.84*4.89*2.93

Item number: 1305276

Click here to see the diamond at James Allen.

Click here to search for other diamonds at James Allen.

I never hated a man enough to give him his diamonds back. Zsa Zsa Gabor .

Typically VS1 clarity diamonds are the best value "safe" clarity grading for purchasing online without seeing the diamond - you can go to a lower clarity grading but then you need to see a good quality photo showing the diamond to analyze the inclusions for yourself. If you look at this 0.42 carat stone and immediately say, "that stone is too small", think about whether it's possible to compromise by reducing other properties such as clarity in order to go for a larger diamond.

The G color of this diamond provides value for your dollar, as it isn't one of the expensive premium color grades D-F. The girdle of this diamond ("Thin to medium") will have an influence on the diamond, and should not be neglected entirely.

While not quite as perfect a cut as Hearts & Arrows, the Ideal cut of this particular diamond means it is significantly cheaper, because you're not paying a premium for a "perfectly" cut diamond. For a diamond, a cost of $1050 really places it in the cheapest set of diamonds, especially for engagement rings.