GemOro Platinum PRO6000 | Durable Precise Jewelers Countertop Portable Scale | Digital Precision Tool with Expert Professional Reading & Accuracy 6000g x 0.1g Readability

it does not give consistently the same weight for the same item. It is sometime off by 0.1 gram

I don't know how I ever did without this scale. Easy to calibrate (I used a role of nickels). Easy to use. As an appraiser this is essential in determining value. Worth every penny.