The Old European Cut Diamond Weight calculator computes the approximate carat weight of a Old European cut diamond based on the average diameter, depth and girdle thickness factor.
INSTRUCTIONS: Choose units and enter the following:
Old European Diamond Carat Weight (Wt): The calculator returns weight of the Old European Cut diamond in carats. However, this can be automatically converted to grams or other weight units via the pull-down menu. Note: Both the vertical and horizontal are entered to compute the average diameter in case the diamond face isn't precisely symmetrical.
The formula to estimate the carat weight of an Old European Cut diamond is:
Wt = vLENGTH * hWIDTH * DEPTH * 0.0064 * wc
The common gem cutsthat are specific to diamonds and diamond cuts including the following: