9ct Vintage Gold Ring with Ruby? Stamped 375 2.3g - Damaged, Scrap / Broken

A vintage 9ct gold ring with maybe a ruby? Not sure. Also has a stamp that looks like 053? Stamped 375 and weighing 2.3g, is hallmarked and features one gemstone. Branded C.L & S. Although damaged and potentially for scrap.

eBay