18 ct. white gold, marked, makers mark 'W' probably jeweller Wilm. Ringtop with 4 round cut rubies and 16 round cut diam. in total approx. 0,60 ct. H.flawless-vsi. In front w. 13 mm, size 47, weight approx. 7,8 g. Details and replacement value of 1.800 Euro according to report of Gemmologisches Institut Hamburg of 2014.