Connor gets some mitigation for coming clean, but he's still in trouble.
He clearly knows right from wrong, and has a conscience, so I've (mostly) been doing something right. He also doesn't want to upset his mother who loves his thoughtful, if ill-gotten, gift, and if possible, I'd like that to happen as well. If she finds out its provenance, it's very likely that she'll no longer love it or wear it.
We're going to have the conversation about honesty and stealing again. Is this a unique necklace? That is, if his mother goes to the store wearing it, will it be immediately recognizable? If so, Connor and I will return to the store where he will make a full confession and apology, and we will pay for the necklace. He already has thirty dollars; I'll make up the rest and deduct it from his allowance. Hopefully, the shopkeeper/owner will be understanding, and that part of the problem will be obviated without having to involve his mother.
If it is not a unique necklace, and if we live in a sensible community where we have some relationship with the store, we will do the same thing. If we live in a modern police state, we will instead send a money order for the amount and a note.
Either way, he's stolen, and lied, at least until his conscience got the better of him. I'm going to promise him a switching. After he goes outside, cuts a switch, and brings it back, I will commute his sentence to hairbrush. His honesty, albeit after the fact, is a mitigating factor, but the offense still calls for a scorching. Hopefully that bit of business can be taken care of while mom is out shopping.