Actor George Clooney has splurged on an engagement ring for his soon-to-be wife Amal Alamuddin's - the seven-carat diamond is reportedly worth $750,000.

Jeweler Jean Dousett estimates the emerald-cut diamond, which is set in platinum, to cost around $750,000, reports eonline.com.

It seems Clooney spared no expense when he finally found the one.