In an episode of the 4th season of Curb Your Enthusiasm a black prostitute asks Larry if he wants to "dig for diamonds". Can somebody explain to me the meaning of this slang phrase? I can't find a definition online.The episode is called " the car pool lane" and it's the 6th episode of the 4th season.
Diamonds is a term occasionally used for amphetamines (mdma or ecstasy).
In this context it would mean a narcotic enhanced sexual encounter