Recommended Proportions for Princess Cut Diamonds

When selecting a princess cut diamond, you should avoid stones that have a table % that is larger than the depth % for optimum brilliance. My personal advice is to stick with a minimum of G color and SI1 clarity (it’s just my personal preference).

	Excellent	Very Good	Good	Fair/Poor
Table %	64% – 75%	60% – 80%	56% – 82%	Outside Ranges
Depth %	64% – 75%	60% – 78%	58% – 80%	Outside Ranges
Polish/Symmetry	Excellent – Very Good		Good	Outside Ranges
Length to Width (Square)	1.00 – 1.02	1.00 – 1.04	1.00 – 1.05	Outside Ranges
Length to Width (Rectangle)	1.5 – 1.75	1.76 – 1.85	1.86 – 1.99	Outside Ranges
Girdle Thickness	V. Thin – Slightly Thick		V. Thin – Thick	Outside Ranges
Culet Size	None	Very Small	Small	Outside Ranges

* Note: The table should be used as a reference only.

Different Outlines And Length to Width Ratios

Did you know that princesses can come in all sorts of shapes and outlines? Sadly, alot of badly cut diamonds flood the market today and the majority of the stones have poor light performance. Check out the different kinds of shapes and outlines that they can come in.

shape issues and l/w ratios

One of the most common mistakes that people make when buying fancy cuts is to buy sight unseen. To avoid such problems, I highly recommend that you work with vendors that offer photography technologies or enable you to check out the diamond with a virtual loupe before you lay down the money.

Did you also know that chevrons in a princess can change the outlook of the stone? Continue reading to find out more…

Chervrons Directly Affect Brilliance And Scintillation

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