Renderings for preview are done in Corona Render 12. The model uses Corona Legacy Mtl. A version of Corona Render no lower than 1.5 is required.
Material conversion to V-Ray was done using the standard V-Ray scene converter. V-Ray version - 6.2

The model does not have a proper polygonal mesh. This is done intentionally to minimize the geometry and weight of the model for comfortable work.

Pendant light - Moderli Birds V3071-2PL

Poly: 17 756
Verts: 18 280

Those working in V-Ray version lower than 3.1 should be careful; in the materials section, BRDF is set to Microfaset GTR (GGX). If your version is older than 3.1, the BRDF field will be empty. Choose Blinn, Phong, or Ward – whichever is preferable for you.

For Corona render, it is recommended to use a version no lower than 1.5, as the glossiness of materials is set with PBR in mind.