This new wire is gold plated silver. This is NOT an alloy mix with 1% gold blended. The silver wire strands are produced and sent to a professional plating company which plates the gold onto the silver stands. The gold plated strands are sent back and assembled with a HIGH strand count. The final product is a 26awg stranded UPOCC gold plated silver.
The price for a 48" iem cable is $525 so considerably more than even TWag V3. I have no way of deciding if that is a fair price but if you can afford it and really want to get the best from your phones then go for it and you'll be happy you did. Personally I have to say that I would not have been able to justify spending the money to buy one but after having tried it I would have yearned for it.