I had bought couple of Jewellery sets from Surat Diamonds couple of months ago and am thoroughly impressed with them.
I purchased only fancy jewellery. The design was flawless, the pendants were gorgeous and were worth the price they charge. And they dont start discolouring within a week or two like the cheap jewellery. They still look the same as they did when I got them, and this is after everyday use.
The only flaw that I found was the packing quality. For the high shipping charges that they charge, the packing could have been a little better. After all, the courier companies handle everything like trash. I found the jewellery case of one of my sets broken even with the bubble wrapping, because it had been packed in a normal courier cover. But then, the jewel set was intact thankfully and no harm done there:)
Overall, except for the packing, which am sure they would have definitely improved by now, the quality is quite good. You can expect to get your moneys worth here.