The World's First Mini Diamond Pure-Pak® Curve Cartons The Mini Diamond Pure-Pak® Curve carton was launched by Spanish producer Lactea Antequerana with La Vega branded yoghurt in March 2005. A liquid yoghurt that contains pieces of fruit, La Vega is filled on a retrofit P-M30 filling machine in 500ml Mini Diamond Pure-Pak® Curve cartons with Elo-Cap UE screw cap.