Looks lovely! Looks like a nice color-change to me in those photos.
Any thoughts on price?
In my country, you could not have that ring made for that price so there's that. It's hard to get anything made of gold for less than a few hundred dollars so I'm not concerned about the price.
I think alex prices scale exponentially and I do not know the 0.1-ct market. I also do not know if it's "natural" or the quality of the melee -- but at that price point it's not cost-effective for the vendor or you to get a report from a reputable lab. Just wear and enjoy! And keep some old-school incandescent bulbs at home!