Promise Ring

Ambria
My boyfriend and I will have been dating for 6 months on September 25th, but we have also dated before and I've known him since I was 9. He wants to give me a promise ring, but some people are saying it's too soon because I don't know him enough yet. In reality I know a lot about him because I've known him for 7 years. Any thoughts on the ring? Is it too early?