Hi Graham,
After all our discussions about Diamonds... and given that everyone should have a little BLING in their collection, I would submit;
Bling.
But being an ex Police officer you might also consider;
AU
AU for gold, sure.... but as a Policeman.... if the Gold fish was up to no good you could say "A U"... as in "HEY YOU.... I am watching you"
Kindest regards,
Jack