Behind the Momo's winning air of devil-may-care dandyism lies the rigor of the 1960s Mod design: everything on it is essential to its function, without a single unnecessary flourish. As the Mods knew, such simplicity requires great discipline to achieve (think of a Vidal Sassoon hairstyle or an impeccably tailored Italian suit). To create the Momo, the designers, engineers, and craftspeople spent months painstakingly planning and executing every last detail.
Link: https://www.rejuvenation.com/catalog/products/momo-8-arm-chandelier 

Who works with V-Ray version lower than 3.1, pay attention to materials section BRDF (Microfaset GTR (GGX)), if your version is older than 3.1 - this option will be empty and you have to choose:
Blinn,Ward or Phong, depence on material.