I don’t have personal experience reselling Cartier pieces, but I do work in luxury retail and partner with one of the main pre-loved luxury platforms in the market today.
One of the things I regularly see with regards to reselling luxury is that people often forget what a large cut resellers take. So even if your Cartier pieces have not really lost any value by the time you’re ready to resell them, and even if their market price has increased, you will pretty much always be taking a significant hit. Because the reseller wants to make a significant profit, so the price they’re going to offer you is going to be at least 30% less than what you paid, depending on the product.
Obviously this varies depending on the item, the brand, the resell platform, the rarity and scarcity of the piece, etc. but it’s something to consider.
And of course you can try selling it on your own, but for peace of mind and safety, it’s easier to use a well-known resell platform and they are famous for lowballing clients so that they can have the highest possible margins.
But if you consider that loss you take when reselling it the cost of “renting” your piece (aka wearing it for a few years before you decide to sell it), as well as the cost of having the reseller handle all the headache-inducing details of selling your piece for you, it’s probably a pretty fair trade-off!
(And to keep this strictly on topic—at the company I work with, we receive many JUC and Love bracelets regularly, so while our offers are reasonable and competitive to other resellers, the client will always take a hit because they’re not rare pieces.)