Material content: gold plated The color I have is the blue colored stone (the one shown in the second picture) The item looks great and of high quality! Depending on how the sun hits them they change their look! They look absolutely stunning on :) *** this Stone is not intended for energy healing, whatever that is. I had a buyer give me a poor rating for this necklace stating it’s very pretty but she can’t use it for her energy healing... just an FYI***