Just like Rihanna's Diamonds In Sky tune, one giant balloon has been let loose containing a very precious sparkler.
And the best news? Whoever finds it, gets to keep it!
Mounted on a steel frame and carried by a helium balloon, the precious gem will be launched in a secret location.
Once it reaches above the earth, the atmospheric pressure will cause the balloon to pop and an orange parachute will then take the jewel back to earth.
The company 77 Diamonds is behind the stunt and has even added a tracking device to the diamond - they'll even be tweeting clues to help jewel hunters!
It's been estimated that the diamond could drop anywhere within a 60 mile zone – let's hope it doesn't end up in the sea!
Suddenly, the sky is a lot more interesting…
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