There are 58 facets in a Round Brilliant Cut including the
culet. On the Crown or upper part of the Diamond, these consist of 1
table facet, 8 bezel facets, 8 star facets, and 16 upper girdle facets
for a total of 33. On the pavilion, or bottom part of the Diamond, there
are 16 lower girdle facets, 8 pavilion main facets and 1 culet.