Jennings TB500 500g x 0.01g Digital Precision Scale https://www.amazon.com/dp/B00GR340LY/ref=cm_sw_r_cp_apa_4YxVBb9S16NPM
Budget scales are all okay enough for nearly all uses. Get the above if you want serious accuracy. I started getting into small gold and private buys, so I wanted high accuracy in weight and specific gravity checks.