I assume there’s a void behind the stone to store the coke.

Or it flips open and you can drop a roofie into somebody's Colt 40 like a P-Funk Borgia.

Back as a young kid I got a huge trove of 1970s trashy jewelry that was being thrown away somewhere or other and it definitely included a similar ring to this that had a pretty big secret compartment that in retrospect was definitely for coke.

I know that one of our local call/mailing centers for a LOT of the 1970s "Order before midnight tonight" ads is still there, and still doing basically the same thing.