Pierced and signed vemeil-set limpet with fire opal. Botswana Agate and extremely rare, specimen Australian Cymbiola Voluta shells. It's a miracle that I found two of these same sized shells--one harvested in the 1960s and one in the 1940s. They are a bit heavy as they are large, but great for special occasions and short-term wearing--like a dinner, They are not for every day. The shells are not drilled too they retain their value. Just the two shells would fetch $700 by a collector. These are glorious earrings for a tall woman. 3.5"