The 1210N is perfect for accurately weighing diamonds and precious gems, with 4 weighing modes – carat, gram, troy ounce, and grain.  Incorporating a draft-eliminating shield to remove even the slightest influence from drafts or air currents it provides highly accurate readings on its easy-to-read 5 digit LCD.  Features include tare and calibration functions, stability indicator, energy saving auto power-off, and a low battery indicator.  Includes an AC adapter, you can operate the scale without battery power.  Also includes soft case, gem cup, and 20g calibration test weight.  A professional accuracy level of 0.01 carat is achieved for a total capacity of 100 carats, and the 1210N does not to be calibrated each time the scale is shut off.