15) Kim Kardashian

“Kanye was involved in every single way. He had a vision from the beginning. He looked at a lot of stones and he wanted only the best,” a representative to Schwartz had said.

Fiancé: Kanye West
Features: A flawless cushion-cut diamond ring
Carats: 15
Estimated worth: $8 million (could be more)
Designer: Lorraine Schwartz; co-designed by Kanye West himself