Necklace with Turquoise Stones Earrings and a Dangler for A Necklace

These are some pieces my wife made to sell at an artwork. Outside of the necklace stones I do not know what was used in the making of each piece. The necklace has a tag that says pearls, turquoise, pyrite gold and vermeil. The necklace is 18 inches. The earrings are 1 3/4 inches. The dangler is 2 inches. It can also go on a charm bracelet. There is a st cker on the necklace for $60. I will use that as the original price for all three even though they were for sale separately.