New Delhi, Sept. 27 -- Hollywood actor George Clooney's proposal to international human rights lawyer Amal Clooney remains one of the most talked-about celebrity love stories, and at the centre of it is her dazzling engagement ring.

According to People, George popped the question six months into dating Amal with a custom-designed emerald-cut diamond ring. The ethically sourced centre stone, estimated to be around 7 carats, is flanked by two tapered baguettes on a platinum band. While the jeweller behind the design remains unknown, George is said to have helped conceptualise the elegant piece.

Amal first gave fans a glimpse of her ring in April 2014, the same month George proposed, when the couple attended Rande Gerber's birthday celebra...