Derek Hough just put a ring on it!
The Emmy Award winner, 37, worked with Chau Lui, co-owner of Paris Jewellers, to design the "extraordinary and rare" custom diamond engagement ring he used to propose to fiancée Hayley Erbert.
"Derek cared deeply about designing a ring that was extraordinary to honor this new journey with Hayley," Lui tells PEOPLE.
"It was important to Derek that the diamond was rare and had tremendous sparkle, fire and brilliance, just like their love."
The jeweler and dancing star chose a flawless oval diamond, which Lui describes as "breathtaking," set in platinum with a pavé band and a hidden halo "that sparkles from all angles....