I added diamonds to my JUC bracelet and I also resized it half size up. I don’t really understand why you would care about Cartier polishing, it’s a 5 minute job every jeweler can make. But to tell you the truth, instead of buying new Cartier and then adding diamonds to it, it would make a lot more sense to buy a dupe at the very beginning. Love is super easy to make and you can find amazing copies. I added diamonds to my JUC because both sizes didn’t perfectly fit me, so I made 16.5 for myself, and as it has been already altered, it made sense to add diamonds.