Tortoise-shell jade bead, 19th century

A piece of jade, with dark tones between red and green, carved in one piece in the shape of a turtle's shell. The details of the shell are engraved. It has a hole that runs lengthwise through it to form part of an ornament. 

Length: 4.40 cm; Height: 2.70 cm; Width: 3.70 cm; Weight: 63 g