Material:alloyWeight:10gColor:black，greensize:"The ring diameter 23mm 12 * 17mm Main Stone"tips:1 represents a black 17 #2 represents a black 18 #3 represents a black 19 #4 represents a black 20 #5 represents a green 17#6 represents a green 18#7 represents a green 19#8 represents a green 20#Please allow 1-4CM differences due to manual measurement.All measurement in cm， please note 1 cm = 0.39 inch，1 inch=2.54 cm.