Mirror in a carved gilded frame with asymmetric facets.

3477 polys, UVW, in the mirror material there are dust and traces of wiping, to get a clean reflection, turn off the Reflect and RGlossiness slots.

Corona 4hotfix1
Vray 3.60.03
Additional plugins are not used.

For Corona render, it is recommended to install a version of at least 1.5, since the glossiness of materials is configured with PBR in mind.
Who works in the V-Ray version lower than 3.1, be careful, in the materials in the BRDF section there is Microfaset GTR (GGX), if your version is older than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - which is preferable for you.