Abstract: A protective case for a pearl comprises a wall defining a closed internal volume for containing a pearl when the case is closed. A first case part and a second case part each form a substantial wall portion of the wall of the case. The first and second case parts are adapted to be releasably closed together to define the closed internal volume of the case, and each of the first and second case parts is formed from a transparent material. An irreversible locking mechanism is adapted to lock the first and second parts together when closed and prevent the first and second parts from being opened, such that the locking mechanism must be broken to open the case. The locking mechanism is located inside the case and is visible through the transparent material of at least one of the first and second case parts so that a state of the locking mechanism is discernible from an outside of the case.

Abstract: A protective case for a pearl comprises a wall defining a closed internal volume for containing a pearl when the case is closed. A first case part and a second case part each form a substantial wall portion of the wall of the case. The first and second case parts are adapted to be releasably closed together to define the closed internal volume of the case, and each of the first and second case parts is formed from a transparent material. An irreversible locking mechanism is adapted to lock the first and second parts together when closed and prevent the first and second parts from being opened, such that the locking mechanism must be broken to open the case. The locking mechanism is located inside the case and is visible through the transparent material of at least one of the first and second case parts so that a state of the locking mechanism is discernible from an outside of the case.