Cushion cut proportions

Q

In your book, How to Buy a Diamond, you talk about the best proportions for a round diamond. What are the best proportions to look for for a cushion cut diamond?

A

Hi Nathalie,

There are many variations in faceting arrangement for cushion cut diamonds. Also, cutters usually tend to cut cushions to salvage weight–not for maximizing sparkle. Because of these two reasons, I don’t have a guide for proportions of a cushion in my book. It may be most advantageous to you to use the round guideline for cushion brilliant stones. Have a great day!