Ring with ruby 3.11 ct. surrounded by 178 brilliant-cut diamonds

Ring with ruby 3.11 ct, surrounded by 178 brilliant-cut diamonds totalling ca. 4.09 ct, HFW +(D)/SI, 950 platinum, 15.7 g, ring size 53, 21st century, with signs of wear, ring shank with crack, maker's mark 'Leyser'.