Perry posted a close-up image of the pair surrounded by numerous heart-shaped balloons, while showing off her unique flower-shaped diamond ring, which features a colorful jewel in the center.
While fans are excited about the pop star, 34, and actor's, 42, happy news - they couldn't help but notice her sparkler looks just like Miranda's.
While Perry's ring is pink, Kerr's OG ring is a plain diamond with the same flower shape.
Diamond expert Josh Marion told Us Weekly Perry’s ring as ‘one-of-a-kind’.
“This one-of-a-kind ruby or a vivid pink ring appears to be approximately two carats and is surrounded by eight half-carat diamonds that accentuate this precious gem,” he said.
“I would insure this ring for at least a half a million dollars, if it’s truly a ruby. If it’s a vivid pink diamond, it would be worth around $5 million.”