So THIS is how much money Rob cashed out on Blac Chyna’s ring

The Hollywood couple are sure not hiding away from the limelight to celebrate their engagement. If anything, they're stepping in front of the papz more than ever this week.

Since they announced they were getting married on Monday, Blac has not stopped flashing her mega-bling ring, and after finding out how much Rob actually paid for it, we're not surprised.

Speaking to E!, jewellery designer Ben Baller spilled ALL the beans on Rob's decision.

"He called me and he was like, 'I have some ideas,' and he shot me over a few pics he saw on my IF & Co. Instagram page. He said, 'What can you do for me?' I said, 'Trust me.' And he agreed."

"$325,000 (€285,000) is pretty close to what he paid", Ben told the site. "But it could have been a lot more because of the clarity. It's hard to manipulate that kind of radiance on a diamond".

He also added: "She was really going crazy over the ring. She loves it."

At that price, we're sure she does.