The ring is said to be designed by Neil Lane. The designer collaborated with Ross on creating an unique "sparkler" ring for the singer.
A rep for Neil Lane told E! News spilled the details about Ashlee's ring. "It is a marquise-cut diamond ring in platinum and gold, accented with rubies," the rep shared.
Ashlee isn't the only sister to like rubies. Jessica Simpson's engagement ruby ring was also designed by Neil Lane. The designs are completely different, but both feature the same stones.
Ashlee said yes to Evan's proposal on Monday night. She announced to Twitter that she's getting engaged. She wrote, "My baby love and I are ENGAGED!!! Hallejuah Hawaii." [SIC] She also shared a photo of the two enjoying their time in Hawaii.
Ashlee Simpson is ready to give marriage a second go. She was previously married to Fall Out Boy bassist Pete Wentz, whom she has a 5-year-old son with.