The table is transformer, you can change the shape of the table top as needed
https://www.jesse.it/en/products/tables/moon/ 

Circle dimensions: 184 x 184 x H73cm
Dimensions square: 130 x 130 x H73cm
Polygons: 12 628

** If using OBJ, apply MeshSmoth or TurboSmoth with 2-3 iterations.
* table folding animated - if not needed, remove animation keys
* Who works in 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 lower than 3.1, then the BRDF field will be empty. Choose Blinn, Phong or Ward - which is preferable for you