Graff unveils Jung Kook, of pop royalty BTS, as its new House ambassador. “Jung Kook is a cultural icon, known for his multifaceted talents. His performances are bold yet refined, crafted with a brilliance that is impossible to ignore. Just as we at Graff push the boundaries of what is achievable in luxury jewellery, Jungkook continually challenges creative boundaries in his work. We are delighted to welcome him as Graff’s new global ambassador,