Is this Tacky?

I'm saving up for the Cartier Love ring, but the catch is that it's marketed as a wedding band. I like the ring, because it's minimalist and cute.

All my fingers are pretty uniform, so I plan to wear the ring on multiple fingers. Some days the ring will be on my pointer finger, middle finger, and my "wedding finger".

I'm not seeing anyone in the near future. My question is would it be weird for me to buy the ring? I don't want to give guys the impression that I'm taken. Also, I'm working up the courage to walk in to the store and buy it, would the sales associate give me "weird looks" for buying a wedding band as a decorative piece?

My mom told me to wait for a man to propose to me with the ring, but here's the thing, I can already afford it, and I'm not seeing anyone.