It's by a relatively new (to me) Australian brand called Nicholas. They have some beautiful pieces and this belt stole my heart when I saw it in a lookbook a few months ago. It had sold out until it recently got restocked so I had to have it.
For me, since I tend to buy a lot of "simple" pieces of clothing, something like this is a worthy investment. With it, you can revive any old tunic, shift dress, skirt, etc. and make a fresh new outfit!
Here are some photos (ruined by iPhone's questionable flash) of how I wore it on this particular night:
If you are interested, you can still find some here, available in cream and black. I have the black one in the size Small. It's meant to fit a 26" waist (the XS is 24"). I have a 25" waist so I sized up and it fits well. They have been restocking the different sizes but I am not sure for how long they will restock until they eventually sell out again! I am so happy to have this in my wardrobe and it will be featured in plenty of future outfits.
I hope you all had a lovely weekend :)