RUBY DIAMOND 6.5mm ROUND ENGAGEMENT RING SETTING VINTAGE STYLE HALO TARGET REDThis gorgeous semi mount is a beautifully designed modern twist on an Art Deco era target ring. The setting is encircled by rich red custom cut natural rubies which curve up to points at the compass points. The rubies are set off by a border of bright diamonds. Finished with fine milgrain details, this setting provides the perfect backdrop for a diamond or gemstone of your choice. The setting can fit a round shape with diameters ranging from 6. 4 6.