I think you must be right because I ordered an Ambanjo (?) demantoid garnet ring, the first piece from Rocks&Co in a very long time. I'd bought a little demantoid ring from Gems during the sale, but sent it back because it was very dainty and I prefer larger pieces - silly me! The ring from Rocks looked larger and the demantoids so very sparkly, so I thought I'd go for it as I regret sending the other one back.
Well, they just looked like a row of very ordinary little stones when I received it yesterday, even in sunlight they weren't particularly sparkly, so they must do something special with their lighting, I'd love to know what. Needless to say, the ring has gone straight back. I've sent them an email to say that I am cancelling the Contract and am looking forward to a full refund plus the cost of delivery as stated in the distance selling rules. I noticed on the back of their despatch note that they specifically state that they do not refund delivery charges in case of cancellation of Contract, but that sounds like a breach of rules to me. I'll see what their reaction is and will let you .