Jscale Jennings JS-VG Gem Digital Pocket Scale 20g x 0.002g - 100ct x 0.01ct Gemological & Grain Scale - All Black Weighs In: Grams, Carats, Grains, Ounces, Troy Ounces, Pennyweight, and Milligrams Tare Function / Translucent Removable Cover Buttons Easily Accessable (With Casing Closed) Red LCD Display / 3 AAA Batteries (included) 100th Carat Resolution and Eight Different Weighing Modes - 100 Carat Capacity x 0.01 Carat Resolution