AN UNHEATED MULTICOLOURED SAPPHIRE RING in yellow gold

AN UNHEATED MULTICOLOURED SAPPHIRE RING in yellow gold, of cluster design, set with oval blue, purple and pink sapphires, pear cut green sapphires and accented with smaller round cut yellow sapphires, British hallmarks, size N / 6.75, 3.7g. Accompanied by a gemmological report stating that the sapphires of purple and pink hue are of Madagascar origin, with no indications of heat treatment.