Latest Rapaport report says outlook for festive period is mixed.
Company's new $35m facility hopes to establish diamond hub in Africa.
New jewellery designs including rocket and mini planet pendants.
Federation says dealers should be responsible for what they sell.
From 3D printing and diamond mines to making steel a luxury material.
Award winning retailer and watch brand scoop prizes at CMJ conference.
London-based silver jewellery designer's collection goes nationwide.