A 1-carat princess-cut diamond can look larger face up when compared to other cuts due to its squarish, slightly rectangular shape. One should select ideal proportions for it to make it look brilliant and balanced, as poor proportions can often make the princess diamond look flat or dull. Our recommendation would be between 68% and 72%. For a squarish look, one must go for a 1.00 to 1.02 length-to-width ratio. Enjoy princess sparklers with the Friendly Diamonds lab diamond collection.