JEWELRY. Grouping of 18kt and 14kt Gold and Pearl

Jewelry. Includes a Mikimoto 18kt yellow gold clasped pearl necklace - stamped, "750", alongside the Mikimoto maker's mark; an 18kt brushed white gold brooch displaying (7) blue pearls - stamped, "750"; a pair of 18kt brushed bicolor gold earrings displaying (7) pearls and leaf accents - stamped, "K18"; a pair of 18kt yellow gold clip on screw back earrings displaying a pearl enclosed in an openwork heart form - stamped, "K18"; a pair of 14kt yellow gold earrings displaying (3) pearls - stamped, "14k"; and a pair of 14k yellow gold earrings displaying pearls - stamped, "14k". Total approx. weight of pearl necklace is 38.8 g (gross); total approx. weight of 18kt gold items is 25.2 dwt (gross); total approx. weight of 14kt gold items is 3.7 dwt (gross). From a Mamaroneck, NY estate. Dimensions: necklace measures approx. 26.875" in length; brooch measures approx. 2.125" in length.
Condition Report: Good, with light surface scratches and minor dings/dents. Please examine the provided photos to thoroughly evaluate each piece. One of the clip on earrings is missing part of its back. No definitive statement is being made as to whether pearls are natural, cultured or treated.