Fugazy

That broad wouldn't have no fugazy diamonds in her house. We had information the broad didn't have no fake jewelry. It's three fucking carats!

Source: wiktionary

You don't want a girl like me, I'm too crazy / but every other girl you meet is fugazy

Source: wiktionary

I took the diamond and looked it over. "I wouldn't get too excited about it," I said, "because this is fake, a fugazy." [...] "It's a fugazy," I said. "Take it home for your kid to play with."

Source: wiktionary

Stoner examined the Rolex after Mike handed it to him. He said, "Are you sure this is the real thing Mike? Most of the Rolex's out on the street are fugazy's." He used the street term for phony jewelry, but Mike knew exactly what he meant. "Hey Jack, you're gonna offend me if you talk like that. This ain't no fugazy. I've been dealing hot jewels long enough to know what I'm looking at.["]

Source: wiktionary