Talk:Voltolini - Barionetta
From The Gemology Project
Barionetta - Marco Voltolini
This is a pretty oval design for materials with RI higher than quartz (I set it for topaz and higher). For quite high RI's it's a good idea to tangent-ratio the angles of the pavilion to make the stone less deep, this will also increase the light return and further improve the reflections pattern. It's not advised to accomodate pavilion angles for quartz, since large dead areas would appear on the stone sides.
This design looks simple, but is not very easy (altough not difficult) to cut it well. Some meetpoints on the crown just require some care for proper meeting.