A long time ago, people mentioned on GG that the tennis bracelet wasn't high quality and it probably cost around $600 rather than thousands (the usual price of such bracelet). The diamonds didn't have much sparkle, they suspected he got it from Amazon or eBay
It definitely wasn't by a well-known maker, otherwise Smelle wouldn't have to look for somebody to fix the clasp - she'd just take it back to the store where Joe purchased it and they'd have definitely fixed it for free. I remember the vlog where she dragged Joe to the jeweller at lunchtime and made a big deal of how Joe, the gift-giver, would need to TALK NUMBERS with the jeweller. She tried to portray her boyfriend as this prince on a white horse but you could tell the guy only went to the jeweller with her because she must have been doing his head in for days about that damn clasp
Even the fact it was her who had to look around for a suitable jeweller is telling. If Joe really cared about pleasing her and sorting out the faulty bracelet, he'd have done everything in his power to get it fixed without dragging Smelle into this.
Also, more than money issues, I think Joe detested Smelle's vapid personality and lack of compatibility. After a long week of work, his idea of a good weekend was probably either chilling at home or doing something outdoorsy. Instead, he'd end up having to go back to the office because at home there wasn't a single bit of space left for him and his laptop Smelle's crap (aka heirloom pieces) took over the entire place or he'd be dragged to some miserable posh luncheon with passive aggressive bitchy Vancouver socialites.