Portable Carat Scale, 100ct x 0.005ct - GEMORO PCT101PREMIUM CLASS CARAT SCALE The engineers at GemOro have created two new generation, superior carat scales with unique features, style, precision, durability and more! These extra precision carat scale offer accuracy of 0. 005ct, with a capacity of 100ct and 250ct! Each scales functions are controlled by a convenient, easy to use 4 button control panel. Its innovative, low profile flip up draft shield easily expands to accommodate the weighing of large