Kate Middleton's new designer bag is under £400 and just went to the top of our Christmas list

Kate Middleton recently debuted the Strathberry Mini Mosaic bag at her Together At Christmas Carol Service at Westminster Abbey - and it's perfect if you're after one of the best designer bags under £1000. 

There's no secret that the women of the royal family have some of the best designer handbags out there - and specifically, we're always looking specifically at Kate Middleton's, as she does have quite a few. She's worn countless designer pieces over the course of her life as a royal, including Chanel, Mulberry, and more - and she recently debuted a new designer handbag from Strathberry. 

Stepping out with Prince William, Prince George, Princess Charlotte and Prince Louis at the carol concert, Catherine looked angelic in head-to-toe white, opting for one of her best winter coats to inject some glamour with a long-line look, along with coordinating white trousers and creamy heels - carrying the Strathberry Mini Mosaic Bag in Vanilla. 

Although Kate wore the bag, which we've never seen her step out with before, with an all-white outfit, you could certainly pair the mini carry-all with any colours to add a tough of elegance. 

Shop Princess Catherine's Strathberry Bag

This isn't the first time the Princess has sported a chic bag from Strathberry, however - she's worn all kinds of bags from this designer brand before, including clutches, crossbody bags, and more, proving that the British designer brand is well worth the investment.

Don't just take it from Kate Middleton though - the brand's description of the mini purse speaks for itself.

"This beloved, best-selling silhouette has been reimagined into a smaller, more compact nano size. Inspired by the works of Scottish artist Eduardo Poalozzi, this new addition to the Mosaic collection retains the same clean, precise lines and soft malleable leather as its larger counterpart," the Strathberry site says.