The 10 best celebrity engagement rings From Kate Middleton's blue sapphire which was also Lady Diana's engagement ring to Beyoncé's flawless diamond

Beautiful, absurdly huge and very expensive. For their wedding proposals, celebrities need more than just a little jewel and a romantic declaration of love, they want luxury, the sparkle of stunning stones to show off on Instagram and on the red carpet. No star is an exception, when we talk about engagement rings Less is more and all the minimalist philosophy don't work.  

The fiancé: Richard Burton

The ring: a huge pear-cut diamond of 69.42 carats. Extracted from the Primer Mine in South Africa in 1966 as a rough and colorless 241-carat diamond, it was later cut by the American jeweler Harry Winston in the gem known first as Krupp Diamond and then as Taylor-Burton Diamond.

The price: paid $305,000 in 1968, many years later it was auctioned for $8.8 million

The proposal: May 1968