Depends on whether the stone is round or fancy cut. Well made round stones should have a thickness of 0.5% to 5% of total depth of stone.
“Small” indicates size of culet only and does not affect proportions of stone until the size reaches “medium” and larger.
The brilliant cut maximizes the balance between life (brilliance) and fire (dispersion); because cut is a question of taste and all cuts are beautiful in their own way. Brilliant cut has a 58-facet arrangement that radiates from the centre of the stone towards the girdle, and has triangular facets.
Diamonds with the same carat weight can vary enormously in their style of cutting. Cut depends on the nature of the rough, the polisher, and the different proportions of cut that are sought in various markets, since not all markets have the same preference.
It is important to understand the difference between the cut, that is the shape of the diamond, which is entirely dependent on your taste and the skill of the diamond cutter in producing the finished.
This is dependent on what the market demands dictate.
Very often the skill of the cutter, whose task it is to maximize the yield from the rough stone, will result in an overall higher carat weight than the smaller stone which has been handled differently at the cutting stage.
A diamond is indeed forever and its brilliance, scintillation and sparkle will never diminish unlike diamond simulants. A natural diamond contains the very fires of creation to which it was witness when born billions of years ago at the dawn of time. A radiance and sparkle that will never dim.
No, although, some registered cuts claim to provide grater brilliance and scintillation, however, as is the case with all diamonds. Beauty is in the eyes of the beholder.
Because of diamond’s high refractive index and facet arrangements. When a diamond is cut to good proportions, light will reflect from one mirror-like facet to another and dispense through the top of the stone, resulting in a display of brilliance or fire.
No, the nature of rough dictates the shape of the polished diamond.
It is worth pointing out that a diamond that has been badly cut will not have the same fire, brilliance, scintillation and light as that in a diamond that has been well cut to maximize these qualities.