Easily the most recognizable engagement ring in the royal family and the world, Princess Diana’s blue Ceylon faceted sapphire ring ... stone is flanked by two diamond baguettes on either side.

With two huge and ... the traditional white diamond has become increasingly popular in recent years, adding a distinct and playful vibe to a classic engagement ring. Sapphire, emerald, topaz ...

Celebrity engagement ... a two-tone setting, meant to resemble two lovers coming together. Jackie’s second engagement ring from shipping magnate Aristotle Onassis, a 40-carat Lesotho III diamond ...

The glimpse of the Prince and Princess of Wales—who are currently on summer holiday at Balmoral—lasted just a second or two .