Found this ring today by a river. Hallmarked 18K 750 but was tarnished like brass til I polished it up a tad. An old fake perhaps, or can 18K come out of
Vintage 18k Gold 750 Italy Signet Initial Letter Engravable Mens Ring sz15 | eBay
Yellow solid gold 18k 750/1000 shiny and satin man ring
Men's Modern 18K 750 Yellow Gold Curb Cuban Link 7.00" Chain Bracelet