We've got a new candidate competitor in the rather selective race to create the world's most expensive golf ball marker. This new marker is from Shano, who I've covered for their flashy golf accessories before. Their platinum and diamond golf ball marker uses 1/2 of a carat of white VS Diamonds and measures 1" in diameter and 1/10" in thickness. It retails for $10,200 which still puts it a bit behind the TriMark marker which sells for $10,500. Personally I'd rather spend the money on a new driver or greens fees but the dimpled design is rather attractive.