Marco Bicego Paradise Earrings Yellow Gold, Amethyst and Light Amethyst, Blue Topaz, Pink Tourmaline, Citrine, & Peridot (OB915-MIX01). 18kt yellow gold drop earrings with Amethyst and Light Amethyst, Blue Topaz, Pink Tourmaline, Citrine, & Peridot. Stud backings.