3rd century AD. A substantial gold finger ring with stepped bezel, cell with inset silver plaque, intaglio bust of Mars with crested helmet and sagum cloak. Cf. Ruseva-Slokoska, L., Roman Jewellery, Sofia, 1991, item 201, for type.24.45 grams, 26.21mm overall, 19.02mm internal diameter (approximate size British R, USA 8 1/2, Europe 18 3/4, Japan 18) (1"). From a London private collection of ancient jewellery formed since the 1980s; acquired on the UK and European art markets; accompanied by an independent specialist report and valuation by graduate gemmologist and jewellery expert, Anna Rogers, GIA GG, BA, Gem-A, ref. no. TBA. A video of this lot can be viewed on Timeline Auctions website.