AceShowbiz -

Hayden Panettiere might have revealed her engagement ring, just a few days after she was rumored being betrothed to her reconciled boyfriend Wladimir Klitschko. The "Nashville" actress was spotted wearing a curious diamond rock on her ring finger while enjoying a warm vacation with the heavyweight boxer.

On an Instagram picture, Panettiere was seen wrapping her arms and legs around her beau. The petite beauty wore a floral top and a skirt with her blonde locks arranged in a messy high bun, while her towering boyfriend opted for a simple white tee and shorts. Her ring which was coated in numerous tiny diamonds was visible as well.

Several pictures showing the former "Heroes" star hitting the beach during the holiday in Miami also hit the web. She went with a camel-colored handbag and a white dress, which she later ditched to show off her hot bod in a pink string two-piece bathing suit that had silver rings and turquoise stone details. She kept the ring on her finger as she made a splash in the ocean.

Panettiere, 23, and Klitschko, 37, first broke up in 2011 after two years of dating. They were rumored giving their relationship another go earlier this year, and went public with their reconciliation when watching the Miami Heat taking on the Charlotte Bobcats in Florida March 24. He, at one point, was caught on camera kissing her on the lips.

A few days later, they were reported getting engaged. "Very few people know, and she isn't wearing her ring publicly yet," a source told Us Weekly. "Looks like a summer wedding!"