In 1961, Shirley Bassey sang the words “Diamonds are Forever” to go along with the James Bond installment of the same name. And you know what else is forever? Tattoos! Gemstones—from Marilyn’s classic diamonds to the “Heart of the Ocean” sapphire to exotic African opals—make excellent tattoo subjects because they inherently give off an air of luxury and their geometric composition is interesting to look at. Get your glam on and embrace some sparkle with these gemstone tattoos.