Natural shells with polished finish set with gemstones in 18k gold. Three matching shells with hallmarks for M. Rosario Cataldo and set with checkerboard faceted blue topaz gemstones. Darker shell with hallmark for Stergios and set with oval citrine gemstone. Largest approximately 2 3/4 in. x 4 in. Good condition with mild surface wear, small chips to edges. Hill Auction Gallery in house USA continental shipping $45 plus insurance. Gallery will refer a local shipper for international buyers. Purchaser pick up available upon request.