Learn | Issue 2 Winter 2020

Prepare the setting for the stone by first filing the tops of the prongs flat using a large flat file. Rotate the piece in a ball vise while filing to create even surfaces on prongs.

Use dividers to measure the distance from the stone’s girdle to its table.

Set dividers to ¾ of this distance and scribe a line onto the inside of each prong. This mark will indicate where to create relief cuts that will accommodate the pavilion and girdle of the stone. 4.