Clyde Duneier, Inc. of New York Vintage 14k Blue Topaz Ring Size 6.25

Vintage Worn Twice. Like New Stamped 14k Plus Stamped CID Clyde Duneier Blue Topaz Ring. Size 6.25 CID is the hallmark for jewelry maker Clyde Duneier, Inc. of New York. This mark was first trademarked in 1991 and was cancelled by 1997. This is a famous jewelry making firm in New York since 1910