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).

Tonight's Find: This 1.71 Carat G Color SI1 Clarity Ideal Cut Round Cut Diamond

An important thing to do when buying an SI clarity diamond like this diamond is to make sure of any eye-visible inclusions.

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An untrained eye won't see the color in this G color diamond, except if the stone is held up against a diamond with say a D color rating (for multistone rings this is important). If you are checking out this diamond and thinking to yourself that you want to improve other characteristics of the diamond which don't affect size, you may wish to reduce the 1.71 carat size for this diamond to achieve that end.

The Ideal cut ensures the diamond will sparkle significantly more in comparison to lower cut quality diamonds, maximizing attractiveness. For $14390, you should be getting a nice stone, so make sure you're harsh in your judgement when you're looking at this diamond. If you're unsure from the photo of this SI1 clarity diamond whether the diamond is eye-clean, try contacting a James Allen representative and requesting them to personally analyse the diamond for you - the staff member will give you an honest answer.

For more information on the "Medium to slightly thick" girdle for this diamond, check out the article I wrote on girdle thickness.

Shape: Round

Carat weight: 1.71

Cut: Ideal

Color: G

Clarity: SI1

Price: $14390

Certificate: GIA

Depth: 62.0%

Table: 59.0%

Polish: Excellent

Symmetry: Excellent

Girdle: Medium to slightly thick

Culet: None

Fluorescence: None

Measurements: 7.62*7.67*4.74

Item number: 1345296

Click here to see the diamond at James Allen.

Click here to search for other diamonds at James Allen.

In the age of acorns, before the times of Ceres, a single barley-corn had been of more value to mankind than all the diamonds of the mines of India. Henry Brooke .