Based on our analysis of AGS 0 Ideal princess cut diamonds, a crown height of 9-14% will yield the best light performance. Crown height is not provided on GIA certificates, so it must be judged visually. Here we provide a set of reference images spanning the optimal crown height range. These images should help you evaluate a princess cut diamond’s proportions.
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Crown Height 9%


Crown Height 10%



Crown Height 11%






Crown Height 12%











Crown Height 13%






Crown Height 14%




