Because fancy shaped Tiffany Style Diamond is not symmetrical like a round diamond engagement ring, a broader range of parameters are needed in regards to proportion.
Most diamond fashion were formed more than 100 miles below the surface of the Earth, some from perhaps 400 miles down.
The diamonds on the bracelet are no longer only rice shaped but round, potato, and rondel are some of the shapes which can be found now in bracelet designs. diamonds is the graceful jeweled piece.