1770s-1780s rose gold mourning ring of bone or another unidentifiable material.The piece has a glass dome top with the original aged interior. The gold is in excellent condition as is the crystal. These rings from this era are identified by the shape of the inside and construction, many had scenes etched on ivory. The antique ring appears to have no inscription or mourning scene etched on it. It is possible the scene has faded due to age. Great unique look. Size 10. Could probably be sized down see images. As seen in the October issue of Glamour.