The term 'solid gold' or 'solid 14K gold' is tossed around in the jewelry industry. As consumers, we need to always try to find out what is meant in the specific case..... does solid 14K mean that it's all 14K thru and thru or could the center be hollow (like stampato or electroform)? And if it's a hollow center, how thick are the gold walls, what is the weight of the piece relative to it's size? Or does it mean that the jewelry is not plated, or coated with 14K over another metal or silicone, etc.
Solid 14K terminology is also sometimes used to indicate the piece is karat gold, not plated. But 14K itself is an alloy and not 100% pure gold. So the term solid 14K can be meanless.
In the old days, 14K gold jewelry had thick walls of gold. Today's manufacturing techniques allow jewelry to be made with microscopically thin walls of gold. These items can dent easily, even earrings. Rings and bracelets are even more vulnerable as gram weights on jewelry have decreased substantially as gold prices have increased.