These are about 3/4 of an inch long. Cameo size is 18x13mm. We used to sell these loose cameos. I believe they are German produced in the 1950's These are good quality fashion items. There is no mark on the setting I assume it is gold plate over brass. They still look good. I notice one little loop of the filigree edge is missing a piece. If you blow up the photos you can see it, Not something you will notice though just looking at them.