From the priceless Tiffany & Co. jewel to the How to Lose a Guy in 10 Days necklace, these jaw-dropping gems are unforgettable Kaitlyn is a former Assistant Style & Beauty Editor at PEOPLE.

From sparkling multi-million-dollar diamonds to custom designs, here are the most expensive diamond rings in the world that ...

From oval diamond engagement rings, halo, trilogy or your classic ... Oval Choose from lab-grown diamond or natural Available in platinum, 18k white gold, 18k yellow gold and 14k rose gold.