The jade ring, known as Huan, is of circular form, the body has raised bump patterns, the jade stone is of yellowish-celadon and russet color tone.|||Diameter: 3 in (7.6 cm)|玉轂玉環|扁圆而有大孔，即扁圆环形。两面皆有涡纹。边棱被磨得圆滑，做工精细。两处有焦糖色。