This gemstone testing device is not only a diamond tester, but also a multi gemstone tester. Diamond selector II can help you distinguish whether diamonds are real or fake, including: diamonds, sapphires, , crystals, agates, jadeite, and other precious stones of sizes. Using the Moissanite tester, it is safe and reliable. The power indicator light (automatically turns off the green light) and a long beep remind the user to turn off the instrument. Convenient Storage Bag The Diamond Chooser II is equipped with a PU bag and a small test tray, which can accommodate loose stones. and compact in size, easy to carry. Fast and precise testing: The green indicator be displayed on the Diamond selector II if the stone is a real diamond. When the user accidentally comes into contact with metal instead of stone, it emit a continuous buzzing sound. Colour:As Shown Material:Plastic Package Contents: 1 * diamond tester 1 * Moissanite Tester Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.