"I have something for you, love," he said quietly.  "I was going to wait until tomorrow, when all of us are gathered at mine, but... this is as good a time as any, and I want to see it on your hand."  Taking her right hand in his, he pulled a ring bearing the Yaxley crest on it from his pocket. "It’s not really a Christmas gift, though I suppose you could see it as such.  Just something I’ve been meaning to give you since we changed your name, but we’ve spent so little time at mine."  He slid the ring onto her trembling finger, and she wasn’t surprised when it fit perfectly.  Of course he knew her sizes.