A small group of diamond and gem-set jewellery

A small group of diamond and gem-set jewellery
Comprising two brooches and a ring, each brooch modelled as a rose, the first with diamond-set stem and details, 7.7cm long; the second with carved coral, corallium rubrum, flowerhead to a diamond-set stem and green hardstone leaves, 8.5cm long; the ring set with an oval cabochon coral, corallium rubrum, within a brilliant-cut diamond surround, finger size M