Onyx three ringThe diameter of 4.2 CM11.8 gramsThe agate ring visible on both sides of the three aspects, formation of curve, art of using saber agile, glass phosgene.This kind of system, namely, the warring states period, popular during the period of the lateand three ring system.Three ring on each side "heaven, earth and people", said the heaven, earth, man's cycle, harmony and unity is the ancients protective ward off evil spirits, implied meaning is lucky.The agate ring red color, each a curved line is smooth and natural, quality of a material is clean, patina is thick, the ancient atmosphere.