If you are asking if you could have gotten more money for the ring, the answer is probably going to be yes, but may just as likely be a no. Most of the masses don't want to buy a "used" wedding ring from a stranger. Some view it as bad luck, and others view it as just straight tacky. Personally, it's a great option. The jeweler will most likely either melt it down and build new items, or sell it as new to some unsuspecting customer. Either way, they'll mark it back up and make a decent profit. Either way, selling it to a private entity would have taken a lot of time and effort on your part. The buyer would want an appraisal, and you certainly couldn't have sold it for 100% of what you paid. You might have been lucky to get 60%.
I'm shocked that you sold it. Most people can't grasp that sunk cost dilemma, and would have held on to it for the rest of their lives. Wedding rings are a scam, and while I didn't spend a ton on ours, we still spent too much.