Very Unusual Vintage Modernist Garnet 9k Gold Ring BY D&W Birmingham Size O. This is a large ring and the garnet is a wonderful deep red colour, it is set into a really fantastic and unusual Modernist 9ct gold setting. It is fully hallmarked for 9ct gold with a crown, "375", the Birmingham assay mark, the makers mark "D&W" and date letter. It weighs 5.8 grams. Size O. Excellent condition.