METHOD AND SYSTEM FOR PROVIDING A CLARITY GRADE FOR A GEM

摘要

A method and system for generating a clarity grading look-up table includes collecting actual inclusion parameter data for a plurality of gems, where the actual inclusion parameter data includes an actual clarity grade and an actual inclusion parameter data combination. A mathematical relationship between a clarity grade and a particular inclusion parameter combination is then extrapolated from the actual inclusion parameter data. A derived clarity grade is then assigned to a plurality of inclusion parameter combinations as a function of the mathematical relationship and a set of inputted inclusion parameters. Also, a method and system for providing a clarity grade includes receiving a plurality of inclusion characteristics associated with a gem and parameterizing each of the inclusion characteristics, so that a parameter value is assigned to each inclusion characteristic. The parameter values are then input to a mathematical formula so as to provide a parameterized clarity grade for the gem.

主权项

1. A method for generating a look-up table for use in clarity grading a gem comprising:
collecting actual inclusion parameter data and an associated clarity grade for each of a plurality of gems; deriving from the actual inclusion parameter data and the associated clarity grades mathematical relationships which model interactions between clarity grades and combinations of inclusion parameters; and associating parameterized clarity grades with corresponding combinations of inclusion parameter value ranges based upon the derived mathematical relationships, so that for a set of input inclusion parameter values a corresponding parameterized clarity grade is provided.