This Tesselatte ring by Anna Loucah is in fact three rings that interlock together, which can be bought at different stages of the marital process. The Fairtrade white gold engagement ring is set with a 0.50ct ethically sourced princess-cut diamond. This can then be followed by the diamond-set yellow Fairtrade gold wedding band that acts as a bezel for the engagement ring. Finally, nestling snugly underneath is a white and yellow Fairtrade gold, diamond-set eternity ring. Each of the gold rings, which have polished and satin finishes, can be bought separately or all at once.