style :

occasion : suggested occasion

metal finish : the color and finish of metal

material : materials used to produce the item

gemstone :

unique theme : overal unique theme, may be only few of such kind

type :

collection :

association : remote or abstract association that this product evokes

design element : elements used in the design

shape :

wear on : places on body

fastening : type of fastening

type of chain :

necklace size : common name for the necklace size, please look in our dictionary for more info