Kylie's new boyfriend says they're engaged...

Wow, we were so taken with her outfit we never even noticed the ring. Then again, these after-party pics took a while longer to circulate. First, to the new fiance...

Rumours had been circulating since January that Kylie may be getting hitched as she was spotted dining at Chiltern Firehouse with a sizeable diamond on her ring finger. Her reported betrothed is 28-year-old Joshua Sasse. They confirmed they were dating back in November, and now Joshua confirmed they are engaged by referring to the 47-year-old popstar as his 'fiancée' during an NME After Party.

A source speaking with The Sun said: "Kylie may be keeping tight-lipped, but Josh isn’t as keen to keep it a secret. He was proudly speaking about his fiancée to several guests and even joked that being with her meant he wouldn’t have any problem getting into parties. Kylie was presenting an award and didn’t join him much as she didn’t seem as bothered about having a wild night out."

According to The Telegraph, they met "in September on the set of American TV series Galavant, a musical comedy in which Sasse stars and in which she was making a guest appearance. Sasse is thought to have proposed during a two-week skiing trip to Geneva over the festive break."

Now, to the ring.

For those requiring a closer look...

And, because I'm stone mad for rings, here's the closest one I can get, which means being blinded a bit. But as large celeb engagement baubles go, it's a beauty.

Any thoughts on Kylie's ring?