Cowboys' Orlando Scandrick -- IT'S DIAMOND RING TIME ... Says Reality Star GF

"Basketball Wives" star Draya Michele has been called many things ... but subtle isn't one of 'em ... and last night she told her BF Orlando Scandrick it's time to pony up for a RING!!!

Draya was leaving Boa Steakhouse on Sunset when we asked if her Dallas Cowboys superstar BF has thought about how he's going to spend his playoff bonus money.

That's when Draya dropped the not-so-subtle hint to TMZ Sports ... saying, "I don't plan for other people's money ... but I hope that he has a nice investment that he's going to buy that has to do with rings and things and sparkly stuff."

She playfully added, "I like diamonds!"

No pressure, Scandrick.