Lady Gaga confirmed that her actor beau, Taylor Kinney, had proposed on Valentine’s Day, presenting the singer with a romantic heart-shaped diamond ring that he designed with jeweller Lorraine Schwartz.

Picture: Getty Images

Picture: Instagram/@LadyGaGa

Three weeks after her wedding to Johannes Huebl, Olivia Palermo finally gave us a clear glimpse of her dazzling engagement ring, boasting a cushion-cut yellow diamond.

Cheryl Cole simultaneously announced her engagement and marriage to boyfriend of three months, Jean-Bernard Fernandez-Visini, on Instagram when she shared a picture of her diamond-encrusted wedding band and sizeable Princess-cut engagement ring. The set is estimated to be worth around $600,000 combined.

Justin Theroux popped the question to Jennifer Aniston on his 41st birthday with his show-stopping eight-carat radiant-cut diamond, said to be worth $500,000.

Hearts across the world broke at the news of George Clooney’s engagement to British human rights lawyer Amal Alamuddin in early 2014, and once again two weeks later when we caught a glimpse of her huge sparkler. Supposedly designed by Clooney himself, the $900,000 ring features an ethically mined seven-carat diamond form in a platinum setting.

Mary-Kate Olsen’s engagement to Olivier Sarkozy was confirmed when she was first spotted wearing a ring — and what a ring! The vintage Cartier piece features a European-cut diamond framed by 16 sapphires and set in 18-karat gold, complete with side petals set with single-cut diamonds. It was previously sold at auction at Sotheby’s in New York for US$81,250 (S$112,925.31).