In order to analyze the Happyeight Brilliant correctly among the increasing number of diamond cuts, it is necessary to study in which way the various models have been derived from the round brilliant.
The classic brilliant is still considered to be the perfect form for a diamond to give its maximum brilliancy and fire. The requirements for the brilliant cut have been carefully laid down in a set of norms, which determine the ideal dimensions for cutting the stone.
Fancy brilliant cuts like e.g. marquise, pear, oval, heart, were the result of the need to compromise between obtaining full brilliancy on the one hand, and minimizing the weight-loss during the polishing process on the other hand, in order to achieve enough yield for certain rough stones. Any degree of deviation from the standard requirements for the brilliant model will automatically reduce the brilliancy and fire of the derived model.
For the Happyeight Brilliant the same set of parameters applies as for the round stone. However, during the polishing process of the Happyeight Brilliant the polisher's actions are totally restricted because of an additional condition set forward: viewed from the table; one has to see the eight points of the extra girdle facets, in perfect symmetry with each other. This requires a cutting technique which is close to perfection, similar even to the one for the ideal cut.
In conclusion, the Happyeight Brilliant is in its general characteristics - meaning brilliancy and fire - an extremely attractive cut.