They may have just broken up a few weeks ago, but rumors are swirling that Chris Brown and Karrueche Tran could be engaged!

On Christmas morning, the 26-year-old model took to Instagram to show off her finger bling (times TWO) ... and damn, was it blinding.

She simply captioned the photo with a heart, leaving fans everywhere wondering if Brown, 25, had popped the question.

The alleged engagement comes right on the heels of a very public split — involving an emotional series of (now deleted) Instagram posts where the 'Don't Wake Me Up' singer, 25, accused his girlfriend of cheating on him with rapper Drake.

"I was locked up for damn near 4 months and only got 1 visit from you while u was hosting parties and taking secret trips to Toronto, going on dates with Drake!" he wrote. "All these celebrities ****** ain't **** and only focus on themselves. I made it clear to the world who my girl was and and made your life equal to mine even at the cost of me not focusing on my career at times."

While Karrueche, on the other hand, took the higher road by simply sharing a quote: