Finally, we found an accurate, compact and affordable digital scale that is suitable for jewelry & gemstone collectors! This completely portable scale, manufactured by American Weigh Scales, Inc. measures 3"x 5" and is 3/4" thick. It has a 55 gram and 275 carat weighing capacity. It also reads in ounces and grains. There is a backlit LCD and a stainless steel weigh tray. It operates on two AAA batteries that are included. It features a flip open cover to protect the delicate weighing surface. It is accurate to within .02 carat. There is a ten (10) year limited warantee! The price? Only $19.95