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).

Found: this 1.37 Carat F Color VS1 Clarity Ideal Cut Round Cut Diamond

You will be paying a slight price premium to have the VS1 clarity rating of this stone rather than a VS2 diamond, as well as the obvious pricetag associated with getting a colorless F diamond.

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The difference between any adjacent colors from the D-E-F color range is only detectable in a lab, meaning this F color diamond is indistinguishable from diamonds rated only one color grade differently. If you're a cautious online buyer, this VS1 clarity diamond is relatively safe bet, since the chances are low of it having any inclusions that can be seen by the naked eye.

Throwing $14330 towards a diamond nets one a well above average diamond, like this one. Just be sure that you and your partner are happy spending the money. Girdle thickness (for this diamond the girdle is "Medium to slightly thick") can have an important role in the apparent size of the diamond, which is detailed in my girdle thickness article.

If you're looking at this diamond and thinking to yourself that you want to improve another property of the diamond which don't affect size, you may wish to reduce the 1.37 carat weight for this diamond to achieve that end. This diamond's Ideal cut rating indicates it has excellent proportions and very good or better polish and symmetry characteristics.

Shape: Round

Carat weight: 1.37

Cut: Ideal

Color: F

Clarity: VS1

Price: $14330

Certificate: GIA

Depth: 62.0%

Table: 55.0%

Polish: Excellent

Symmetry: Excellent

Girdle: Medium to slightly thick

Culet: None

Fluorescence: None

Measurements: 7.09*7.15*4.41

Item number: 1324918

Click here to see the diamond at James Allen.

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