Ask for a new engagement ring?

Or not?

Short story...we been together for 2 and a half years. We dont live together (personal choice) We broke up on june 26 and he asked for the ring back....a week later he asked for another chance and i said yes after a long talk.

We havent talk about wedding, we were supposed to get marry this coming October (yes i had and still have the dress) but now with no ring and a broken engagement i feel like i should reject the same ring IF he ask me again or something similar about marrying.

Do you think its a good idea to not take the same ring he took away from me? (Have a new one)

Please dont tell me i should not had give him another chance...

Thank you