VINTAGE STYLE DIAMOND RUBY COCKTAIL HALO ENGAGEMENT RING SETTING ART DECO 6.5MFeatured here is a lovely vintage inspired red ruby halo semi mount ring with diamond accents! Eight custom cut natural rubies create a unique halo design for this ring. The rubies have a lovely deep red hue that must be seen in person to fully appreciate! Complementing the rubies are bright white diamonds that are 100% clean to the naked eye. The center mounting is ideal for a round stone that is between 6. 3mm and 6. 6mm with an ideal size of 6.