A group of diamond and gem jewellery, comprising: a rock crystal and diamond pendant necklace, the oval rock crystal set with a single diamond, the neckchain with two matching diamond and rock crystal rectangular panels connected to pierced links; a diamond two colour pierced open work brooch, the foliate decoration with central solitaire diamond; a cultured pearl and diamond circular floral open work brooch; a diamond and navette cut sapphire three-stone pierced design bar brooch; and an aquamarine single stone brooch in the form of coiled hoop with leaf decoration, in a fitted case.