["brand new and high quality\nFeatures:\nEasy operation.\nLED light and audio result indication.\nThe red light will be showed and the audio indicator will ring if the stone is real diamond.\nSimple calibration for stones of various sizes.\nAccurate and reliable reading.\nMatched with a testing platform for loose stones.\nProfessional Diamond will indicate genuine diamond or fake\nUses large / small switches for testing diamonds\nEmits audible sounds to easily differentiate the readings\nDiamond tester is battery powered for convenience\nRequires 1 standard 9v battery, which is not included\n\nspecification:\nColor: Black\nMaterial:ABS\nPower supply: 1 * for DC 9V Battery (not include)\nItem size: 14*4*2cm (6.6 * 1.6 * 0.8in)\nQuantity:1set\n\nNote: \nPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.\nDue to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!\n\nPackage includes:\n1 set Diamond Selector Tool"]