Globe Table Lamp by Pebult Design

https://www.etsy.com/listing/1367854339/raw-concrete-globe-table-lamp-minimalist?click_key=96d4a635960a9db56bc42a8357ed5e85bd07f6a5%3A1367854339&click_sum=18f410f7&ref=hp_rv-1&  frs=1&sts=1

Modeling for anti-aliasing: the Turbosmooth modifier is present on the panel - it is open.
In the preview, Turbosmooth iteration = 1.
On the preview with the grid, the Turbosmooth iteration =0.
Renders are made in Corona Render 8.1. Corona Legacy Mtl.
"For Corona Render: it is recommended to install version not lower than 1.5, since the glossiness of materials is configured taking into account PBR."