Bezel cup sterling silver 5mm round setting with 2 rings and anti tarnish finish. The stones are mounted through the back so there is a rim of silver around the stone when you look at it. The back has tabs that you fold over to secure the stone.
Although these stone mounts were meant for flat back stones you can mount faceted stones in them. These sterling silver bezels have 2 rings making them ideal to add to earrings or chains.