18k white gold diamond filigree ring sz 4.5

This is a beautiful diamond filigree ring with engraved band, in 18k white gold. Ring size 4.5, and it looks to have been sized in the past (smooth part on the bottom of the shank), so could be sized again. Diamond is around .17ct, I think like 3.4mm or so. It's not the best diamond, there is a small visible carbon spot by a prong. Could be kept as is or replaced with a better diamond. I absolutely love the setting, but I imagine a lot of us are jewelry lovers and understand that I just don't wear this! I purchased another antique ring so need to make room in my box and this one got the short end of the stick. PayPal friends and family, I will pay shipping.