Itโs the shiny, blue rock on the manicured hand of the Duchess of Cambridge and now itโs reportedly worth 10 times the price that was paid for it.
According to The Telegraph, the Duchess of Cambridgeโs sapphire and diamond engagement ring, which belonged to the late Princess Diana, has been valued at ยฃ300,000 โ thatโs more than $540,000AUD.
But Catherine is not the only famous woman to sport an expensive piece of jewellery on her left hand. Plenty of Hollywood starlets show off their bling too.
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The Duchess of Cambridge started a trend with sapphire and diamond engagement rings after getting engaged to Prince William in 2010. It has been valued at ยฃ300,000.

Jennifer Aniston flashed her huge engagement ring from fiancรฉe Justin Thoreau at the Oscars this year. It is reportedly worth close to $1 million.

Modern Family star, Sofia Vergara was presented with a large shiny diamond from Nick Loeb on her 40th birthday. The ring is reportedly worth several hundred thousand dollars.

Singer Beyoncรฉ was presented with a huge 18-carat diamond ring from Jay-Z worth about $5 million.
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Singer Justin Timberlake popped the question to actress Jessica Biel with a beautiful vintage-inspired six-carat diamond ring, worth an estimated $130,000.