Diamond Weight Estimation
This is for estimating the weight of loose diamonds. I am searching for the formula for rose cuts, which are basically cabochons covered with triangular facets coming up to a point.
This section of my site was originally "Gemstone Weight Estimation", but I realized the formulas were meant for diamond. I know formulas for other gemstones exist, but I don't know what they are, or I would post them here.
3.52 is the specific gravity of diamond.
Rounds = ..........................Diameter x Diameter x Depth x .0061  
Ovals = ..............................Length x width x Depth x .0062  
Princess Cuts = ..............Length x width x depth x .0083  
Heart Cuts = ...................Length x width x depth x .0059  
Triangle Cut = ...............Length x width x depth x .0057 

Emerald Cut = ...............Length x width x depth x factor:


Marquise Cut = .............Length x width x depth x factor:


Pear Cut = ......................Length x width x depth x factor:
