... , 18K gold-plated sterling silver, tourmaline, quartz, peridot, rhodolite, garnet, aquamarine, apatite, topaz, citrine and amethystNecklace Lengthabout 48"ClaspLobster claspMinimum Order ... faceted semi-precious gemstones, including tourmaline, quartz, peridot, rhodolite, garnet, aquamarine, apatite, topaz, citrine and amethyst. 18k yellow gold-plated sterling ...