Miley Cyrus took to her Twitter account last week and posted a photo of her new nail polish, but it wasn't the color that got people talking -- it was the possible engagement ring on her finger. Since the March 22 Twitpic there have been speculations that Miley Cyrus and her boyfriend, actor Liam Hemsworth, are engaged.

I am soooo obsessed with @jennahipp nail foundations! It looks so chic and classic! Cyrus wrote under the photo.

Neither Cyrus nor her Hunger Games beau have commented on the large rock on her ring finger. Some are wondering if the picture of her newly manicured nails is Cyrus' way of announcing a possible engagement to Hemsworth.

The New York Post reported that a source told OK! magazine that Cyrus and Hemsworth have seriously talked about getting married.

They're still keeping it a big secret, but they're seriously talking marriage, the source said. Liam is crazy about her! Miley wants the whole nine yards as far as a big wedding goes.

Hemsworth is 22 and Cyrus is 19. The two have been dating since meeting on the set of their 2009 film The Last Song. The Australian hottie is the younger brother of Thor actor Chris Hemsworth. His career is beginning to take off because of his new movie and he is also set to star alongside Sylvester Stallone, Bruce Willis and Arnold Schwarzenegger in The Expendables 2.

It isn't the first time that Cyrus tweeted a photo of a ring on her left hand. On Feb. 6, Cyrus tweeted a picture of her neon-colored nail polish and a ring similar to the one in the March 22 picture was on her finger.

Miley Cyrus tweeted this picture on Feb. 6, showing what looks like the same possible engagement ring on her finger. Again the singer was showing off her new nail polish, but sources have told celebrity magazines that she and Hemsworth have been seriously discussed marriage. Photo credit:Twitter/@MileyCyrus

Is anyone else OBSESSING over neons like me? the caption read.

Back in 2010, after more than a year of dating, Cyrus and Hemsworth split, as reported by People. but it seems their love is now stronger than before. 

What do you think of Miley Cyrus' ring? Do you think she is engaged and the picture was her way of telling fans? Let us know in the comment box below.