This shell cameo pendant is handcrafted from 14K/20 gold filled wire & beads and a handcarved sardonyx shell cameo. This enchanting cameo measures 23x30 mm and has the really white top layer against the dark brown bottom layer of the sardonyx shell. The cameo really has a lot of depth. The carving is excellent and it is signed on the front "S.A.Crispi". It is just a fantastic piece of minature sculpture. 14K/20 gold filled wire is basically a tube of 14K gold with a jeweler’s wire down the center for flexibility. It wears well, does not tarnish, and has the same allergy reactions (or non-reactions) as 14K gold. Each of my cameo pendants are "one-of-a-kind" and you are selecting the actual one you will be receiving. The chain is not included, but I do have a selection of chains if you need one. approximately 1 5/8" x 2 1/2" 41mm x 64mm 9.5mm bail (will fit over 9mm pearls)