Battenberg diamond and platinum ringAfternoon Tea by Christine Sadler The Battenberg ring is part of the Afternoon Tea collection. First made with pink and yellow sapphires and later with other combinations of precious gemstones, this is the first design made in platinum with diamonds. The ring measures 6mm wide and has a raised section where four princess cut diamonds are set. The style of setting is a combination of bar setting and channel setting. The setting is done under microscope