Pre-Notch-uals.  The Agreement between a Prong and a Stone in hopes of a future Jewelry Union.  Our SEF1690 series 6-Prong Setting Heads. No need to use your burs to carve prongs, they are ready to go! Simply drop in your stone so the girdle is held in the notches and evenly tighten prongs around the crown.  These will fit any calibrated faceted stones.  Solder heads to ring shanks or other materials to create your jewelry designs.   

Settings & Stones
Setting Type	Prong
Stone Size	4mm