I'm very impressed with the quality of this product! It is just perfect, one of the best which I have in my collection! Highly recommended the seller and this product.
It looks pretty much like in the photos. I did a small scratch test and noticed that it is hard enough to scratch glass (which is one of the signs that it's probably genuine topaz, and not some quartz imitation). At this price, the color is probably obtained through treatment, but if you want the naturally-blue topaz, you should be prepared to pay a lot more. The only thing I would mention is that the stone isn't perfectly fitted into the setting (it's visible only from one side, not from the top); but this isn't obvious unless you look really closely. Nevertheless, it doesn't look like it's in danger of falling, there is no movement to the stone. The shipment arrived unexpectedly fast, about 12 days between ordering and delivering.