18k Black/Green Tahitian 7.4mm Pearl Pendant Necklace gold & white tone. diamond

Marked 18" 750(18k) plated Gold and white gold necklace. Rare find. You may change the pendant. Marked 585 14k white gold base Green color south sea pearl wz crystals pendant wz two round diamonds. You may change the chain. This piece is simple and yet sophisticated, equally suited to office wear or a night out on the town. The pearl is a deep, rich green-black and plenty of shining luster on its surface! pre-owned in great condition. See measurement and condition in images. Video will be taken wz shipping label during packing for the buyer. Reasonable offer is welcome.