I also thought of another reason to title it Pearl
. I'm not sure Dukat received his implant here or a little bit later, but the implant itself became a pearl--more in physical appearance than the meaning of its beauty, but it gave him something special, it was, in a way, a treasure for him.
In a Cardassian library
or in a Cardassian gallery
"Reagan, it appears, is really only an ardent unionist if the unions in question are in Poland" - Stephen King, Skeleton Crew