Ibanez J Custom RG8570 Royal Blue Sapphire (630)Ibanez j. custom guitars are manufactured by an elite group of highly skilled luthiers trained in producing instruments of uncompromised quality. The j. custom designation represents every advance in design and technology Ibanez has developed over the decades: the best woods, neck, fret treatments, in demand pickup, and top quality hardware. Each is masterfully crafted to the highest standards to ensure unparalleled sound, maximum playability and