Lamp Manta S2 series Lederam from Enzo Catellani & Logan Smith.
https://www.catellanismith.com/en/lederam-manta-s2 

The materials library contains 4 options (see preview):
white / gold
white / white
black / gold / black
black / copper / black

The size of the plafond: L1000 x W1000 x H530 mm.
Number of polygons: 7938.

Other models of the Lederam series can be downloaded from the links
https://3dsky.org/3dmodels/show/lederam_manta_cws1_1 
https://3dsky.org/3dmodels/show/lederam_manta_s1_1 

Stream with TurboSmooth is open.
Render: V-Ray 3.4
Formats: 3Ds Max 2013 FBX.