Through Elia's Eyes
https://www.bkgjewelry.com/sapphire-ring/519-18k-white-gold-diamond-blue-sapphire-solitaire-ring.html Ruby and Diamond watch by BOUCHERON I believe.
Source : http://www.slideshare.net/amazingsharing/top-10-be
Does this belong to you Or do you know who sells it ?