Mariah Carey
The engagement ring Australian billionaire James Packer gave the diva is generally regarded as the most expensive item of its kind. Experts estimate the value of the 35-carat diamond at ten million dollars.
Unfortunately, it failed miserably at its job of convincing Mariah she now simply had to marry James and the engagement was eventually broken off.
Mariah did not part with the expensive gift and even often wore it to social events, however, rumour has it she's finally decided to sell it.
Kate Middleton
The Duchess of Cambridge's engagement ring once belonged to Princess Diana. Prince William gave Kate the 18-carat sapphire and diamond engagement ring during a trip to Kenya when he formally proposed.
Kim Kardashian
Many can still remember the most famous Kardashian's wedding in a rented stadium surrounded by candles and an orchestra. So it should come as no surprise that when it came to the engagement ring, Ye (formerly known as Kanye West) spared no expense for his future bride either. He proposed to Kim with an eight-million-dollar 15-carat engagement ring. Unfortunately, Kim had the item taken away from her during a highly publicised Paris hotel robbery.
Beyonce
Seeing how enamoured of bling Jay Z is, it was only natural that he would order an eye-wateringly expensive 18-carat diamond ring for Beyone from star jeweller Lorraine Schwartz. The appraised value of the platinum gift is around five million dollars.
Blake Lively
Blake Lively is generally regarded as one of the hottest women on the planet so when Ryan Reynolds decided to pop the question, he figured he had to come up with a ring that became her beauty. The exquisite Lorraine Schwartz piece features an oval-shaped diamond whose facets glint in a thousand hues.
Victoria Beckham
The Beckhams have a touching tradition in which David gives Victoria a new engagement ring at every wedding anniversary, with each subsequent ring being more beautiful and more expensive than the one before it. Each item is worth at least a million pounds and all come with 17-carat stones.