Describing a design that has not materialized yet is extremely difficult.
The lack of common terminology doesn't help either.
When a waiter gets an order from a customer the most important part is to remember exactly what was ordered.
When a jeweler discusses a job with a client, his goal is not to remember what is being said, but to understand what is the motivation for the client's choice.
A jeweler must be a psychologist to get inside his client’s head in order to connect and understand what is being imagined, rather than what is being told.