The prongs are evenly shaped and brightly polished, and their shape complements the stone’s shape.
Prongs are finished and free of tool marks. The insides of the prongs are finished prior to setting, and the exterior is finished after setting.
There is no flashing of metal at the bearing on any prong.
Prong height, measured vertically from the girdle to the top of the table, is between 90% and 100%.
Prong contact, measured along the crown between the girdle and the top of the table, is 50%.
Small relief cuts keep the stone’s corner points from coming into contact with the platinum prongs.
The platinum prongs’ dimensions are substantial enough to maintain shape during normal wear.
Prong angle is 75 degrees.