Katy Perrys ruby sparkler is just a commitment ring

JOHN MAYER has set himself up for a massive dent in the bank balance if he decides to propose to KATY PERRY.

She was pictured on Valentines Day with a ruby ring on her wedding finger.

But instead of getting engaged, John bought the missus a commitment ring to celebrate them moving in together.

He bought the 30k ruby a couple of weeks ago in Montecito, California.

Katy Perry ring

Pricey ... the ruby rock set John Mayer back 30k

X17online.com

A source said: Hes trying so hard to prove that his bad behaviour towards women has changed now.

He saw the ring and thought it was a perfect gift for Valentines Day.

She loved it. Theres no way shes ready to get married yet so a commitment ring is perfect.

Especially when it costs that much.