A spokesperson for Lebanese designer Elie Saab, who designed Katy Perry's wedding dress, believes Kate may well opt for a dress with clean lines and subtle embroidery. "She will probably choose a silhouette that is feminine and flattering, refined and chic - but also modern and with clean lines, that reflects her fresh outlook and easygoing nature. If she opts for embroidery on the dress, it would be subtle, delicate and tone-on-tone. The cut will probably be fitted on the top, with a flowing skirt. Whichever dress she chooses, it will no doubt be glamorous and sophisticated - reflecting the style of a contemporary princess."