Interesting comments on Natural Pearl Appraisals.
Do you consider "one time the weight" grading should
apply to all natural pearls i.e. conch,abalone.
Our abalone conicals we grade on an individual basis.
Example long cone, against short cone. What is the most desirable shape?
What is the point of converting a metric measurement to an
imperial one? i.e. carat to grain as gemstones are always weighed
in carat.