I know a couple people who work in the jewelry industry. More modern jewelry shops have teams of designers who work in 3D modeling software (the dongle-required class) all day to produce ring designs. Some designs are produced white-label for larger, more well-known "brand name" jewelry retail chains. It is better to say that technology has changed the jewelry industry, like every industry.

That being said, in the Diamond District in NYC, multi-million dollar transactions are done informally with verbal contracts. Some things never will change.