Cut stones

Natural Rock Crystal wall sconces on Stainless Steel frame. With two internal LED 3,5W (each) 120~240V, 3000K
You can buy on 
https://www.1stdibs.com/furniture/lighting/sconces-wall-lights/pure-rock-crystal-sconces-classic-cube-demian-quincke/id-f_5486833/
 

.Natural Rock Crystal wall sconces on Stainless Steel frame. With two internal LED 3,5W (each) 120~240V, 3000K  To use only with LED light.
You can buy on 
https://www.1stdibs.com/furniture/lighting/sconces-wall-lights/pure-rock-crystal-sconces-classic-cube-demian-quincke/id-f_5486833/

The beauty of having a Rock Crystal Star inside your home is unique. aprox 32kg  with chain, 70cm diam. Structure in casted bronze with nickel plating. 

High quality 28x38 cm Rock Crystal slab. 2,5 cm thick 4 kg aprox