These are earrings I purchased from Remona Nagasaki on Creema. They sparkle because the base metal has been changed to K18 (not plated!). The design is adorable, like a dumpling with Akoya pearls and gold balls sandwiched between them, and they swing beautifully. The pearls are also lovely. The hallmark is small and difficult to see, but it's there (see photo 4). Please check photo 5 for the size.