This is a Paua Shell [Haliotis Iris] which has been polished in a Koru shape. Found only in New Zealand coastal waters, paua is a mollusc renowned as a local seafood delicacy. The shell is prized for its lustrous colour. Maori traditionally use the shell within wood carvings.
This shell is also polished on the inside of the shell to reveal the lustrous colours that are unique to Paua. The outside of the shell is left in original condition.
Measures 4.8 inches / 12.5 cm by 3.5 inches / 9.0 cm.