The ‘toi et moi’ dual stone design comprised a 2.84-carat emerald-cut emerald and a 2.88 carat emerald-cut diamond, writes Jay Mulvaney, who penned Kennedy Weddings.

The couple later picked out a diamond and emerald ring from Van Cleef & Arpels. In 1968, five years after JFK's death, Jackie married Aristotle Onassis. He proposed with a 40-carat marquise-cut ...

In Chanel High Jewelry's Eternal N°5 Necklace in 18K white gold and diamonds, featuring one emerald-cut diamond worth over 10 carats; and Signature Duo earrings in 18K white gold with diamonds.