For her engagement to Christian Carino, Mother Monster was gifted an oval-cut pink stone (believed to be a pink diamond or pink sapphire), surrounded by round-cut white diamonds. The pretty piece ...

All the Details on Lady Gaga's Million-Dollar Engagement Ring (Which Includes Several Pink Diamonds!) ...

It features a rose gold and red enamel band adorned with a lab-created pear-shaped pink diamond weighing 11.66 ... Related: Jeweler Neil Lane Says 'Boring' Engagement Rings Are 'Out of Style ...

Celebrity engagement rings continue to fascinate fans by the sheer size and cost of these tokens of love. But who's worn the most expensive?

From sparkling multi-million-dollar diamonds to custom designs, here are the most expensive diamond rings in the world that ...