A smokey quartz, coloured diamond and diamond dress ring The oval-cut smokey quartz accented to either side by a brilliant-cut diamond, within a bombé surround of similarly-cut diamonds of brown tint and colourless diamonds, the shoulders of similar design, colourless diamonds approx. 0.55ct total, diamonds of brown tint untested for natural colour, ring size approx. L½ (sizing spring) For further information on this lot please visit Bonhams.com