This method gives you a nice smooth surface look. Pave' set is a two-dimensional form of strip setting in a honeycomb pattern. The stones are patterned very closely together. The metal is pulled up to hold the stones. The only metal visible is what is actually used to hold the stones in place.
Tension set is a method whereby the entire piece acts as a spring to hold the gemstone in place.
There are seats cut on the inside of the metal to help suspend the gemstone. Invisible set refers to a particular square cut of stone which has been cut with slats that are fitted into a metal grid formed by the mounting's undercarriage. The stones on the outside are usually channel set in the mounting.