The Duchess effect
‘Sapphire’ Issa engagement dress
Kate wore this stunning Issa ‘Sapphire’ dress on her engagement to Prince William back in November 2010. 24 hours later, the £385 dress had sold out at Harvey Nichols.
Harvey Nichols’ buying director Averyl Oates said: 'Issa is one of our bestselling brands - since the announcement of the royal engagement we have been inundated with requests.'
Budget imitations sprang up (and sold out) almost overnight too - including a £16 Tesco dress and £20 QVC copy of Kate’s sapphire engagement ring.