Vintage 10K Yellow Gold Greyhound Lines Driver 4 Years Service Ring This is likely a custom ring that has been modified from a service award pin The blue "gemstones" are not precious or semi-precious Size 11 Shank width approx. 3.5–7.0 mm Top measures approx. 18 x 18 x 4.5 mm Stamped 10K Total weight approx. 10.27 g Good preowned condition, please see photos for detail
eBay