Program aims to educate young consumers about mined stones’ positive qualities.
Holiday period saw UK shoppers opt for other categories instead, retailer notes.
Company purchased 19 Ernest Jones watch showrooms from Signet in October.
Revenue down 2% year on year in first fiscal quarter.
Sales growth reflects expansion of network and strong demand for luxury timepieces.
Revenue rose 17% year on year in third fiscal quarter, driven by expansion in Europe.
