Dimensional measurements are made by hand, using calipers and precision scales for weights.
Length=largest dimension measured in millimeters (mm)Width=second largest dimension measured in millimeters (mm)Height, thickness=maximum thickness measured in millimeters (mm)
Precision balance (to 0.01 carat) used: JS-VC (max capacity 20 g), weight measured in carats, result rounded to the tenth according to the rules of rounding and then calculated in grams for shipping purposes.