I have a pair of gold CC studs with crystals, and the post has come off one of the earrings. I've asked around jewellers in my area but no one wants to touch it because it's costume jewellery and they're concerned that when they solder the post back on, it will compromise the bond on the crystals. Has anyone found a work-around to this? I really love the earrings and the price has just gone up soooo much since I bought them 10+ years ago, so I'd really love to be able to save them.