The Marquise Brilliant Diamond Weight calculator computes the approximate weight of a Marquise Brilliant shaped diamond based on the vertical and horizontal widths, the depth and a girdle thickness.
INSTRUCTIONS: Choose units and enter the following:
Marquise Brilliant Diamond Carat Weight (Wt): The calculator returns weight of the diamond in carats. However, this can be automatically converted to other weight units (e.g. grams) via the pull-down menu.
The user must enter a thickness factor for the diamond's girdle ranging from: Slightly Thick,Thick,Very Thick, to Extremely Thick. This is used to calculate the weight correction factor.
The common gem cutsthat are specific to diamonds and diamond cuts including the following: