It appears Christmas may finally be the time when Gwen Stefani and Blake Shelton take the next step in their relationship.

According to Hollywood Life, the country singer has been keeping busy buying presents for Stefani and her three sons, Kingston, Zuma and Apollo, and for her, it has included shopping for diamond jewelry.

"Blake has been shopping up a storm for Gwen and her boys. He has basically bought everything Toys R' Us sells for young boys including Minecraft, Pokemon and Tech Deck supplies. He also likes to get the boys some good old country presents like real bows and arrows, which they shoot on his property," a source told the website. "Blake is just as generous when it comes to Gwen. He really loves to spoil her. He won't say if he's going to propose or not, but he's definitely been shopping for diamond jewelry."

If Shelton is in fact shopping for a ring for his girlfriend of just over a year, it would come after she allegedly wore a diamond ring at Wango Tango back in May of this year, something the source claimed was her way of hinting to Shelton that she wanted him to propose to her.

"As far as the ring is concerned that was worn at Wang Tango, it is not an engagement ring from Blake but it is Gwen's attempt at giving Blake the hint that he should ask soon because she is more than ready for it to happen," the source said. "During Wango Tango she didn't talk to anyone about actually being engaged because she is not yet, but she talked about how things were going great with Blake and how she was looking forward to the future. She knows they both have their albums and their tour to worry about, and he has to deal with a few more weeks of The Voice but if he is ready to pop the question she is ready to say yes!"