Ciara Shows Off Huge 15-Carat Engagement Ring While Rocking Black Sheer Gown [PHOTO]

Ciara and Kim Kardashian are not only good friends, but also now share a couple of things in common after both getting engaged to their significant others on their birthdays. Rapper Future asked Ciara to be his wife Oct. 25.

Like Kardashian, Ciara also received a stunning 15-carat diamond ring. The 28-year-year old made sure to show off her new jewel while hosting an event in Houston this week. Looking gorgeous in a black Alon Livne Sheer Gown and Saint Laurent Pumps, the singer headed to the Moet Rose Lounge. While she looked great, focus could not be taken away from her $500,000 Avianne & Co. ring.

After the surprise proposal, Ciara tweeted Sunday, "Today Has 2 Be Like One Of The Sweetest Days Of My Life! #TheBestBirthdayEver [sic]," and “If I’m Dreaming I Don’t Want to Wake up!” Though Ciara and Future just got engaged, it seemed like it was in the making for years. Back in August, Future told Hot 97 radio host Angie Martinez during an interview that he knew Ciara was the one for him when he saw her seven years ago at a video shoot. "For it to come around and happen, it was just meant to be. This is the one,” he said.

The two also have matching tattoos. Future tattooed a “C” on his ring finger back in May, and Ciara has an “N” on hers, which stands for his real name, Nayvadius. The pair has been dating for about a year.