This is the one I use. GemOro Platinum PRO1001V Countertop/Portable Scale, 1000g x 0.1, Black https://www.amazon.com/dp/B00K85JXIW/ref=cm_sw_r_cp_api_fabc_fxPUFbNSR2ZAJ
It's made for the jewelry industry (there are a lot of ftc regulations on selling jewelry so accuracy is crucial) this one is really nice because it can be calibrated and has a bubble level on top (it helps with accuracy to have your scale sit perfectly level)