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`Wt = f( L , W , D ,"Thin-Medium")`

Enter a value for all fields

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:

- (
**L**) Length - (
**W**) Width - (
**D**) Depth - (
**GT**) Girdle Thickness Factor: This is a factor of the girdle (middle) of the diamond. Uses the pull-down menu to select the appropriate girdle factor.

**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 Diamond Weight formulas contains carat weight equations that are specific to diamonds and diamond cuts including the following:* common gem cuts *

- Compute the carat weight of a Round Brilliant diamond
- Compute the carat weight of a Oval Brilliant diamond
- Compute the carat weight of a Heart Shaped diamond
- Compute the carat weight of a Emerald Cut diamond
- Compute the carat weight of a Baguette diamond
- Compute the carat weight of a Princess Cut diamond
- Compute the carat weight of a Triangular Brilliant diamond
- Compute the carat weight of a Marquise Brilliant diamond
- Compute the carat weight of a Pear Shaped Brilliant (Teardrop) diamond
- Compute the carat weight of a Tapered Baguette diamond,
- Compute the carat weight of an Old European cut diamond.
- Compute the carat weight of a Cushion diamond,