I bought my wife a gold and garnet ring from a company called AM Gold at their shop in the Kotva center. It broke the second time she wore it. They reluctantly agreed to repair it, but it would have cost more to ship back to them than to get it fixed, so I asked them to simply send me a replacement for the missing garnet and I would get it repaired myself. After more than two months and seven requests, I have still gotten no response from them. The garnets are of minimal value anyway, and it would cost them probably pennies to make this right, but they have ignored every effort to get a resolution. There are hundreds of other jewelers in Prague, so don't make the same mistake we did!