The dynamic line of gold creates a characteristic wave in the On the Edge collection. It is a manifesto of modern design, where the geometric form takes on a surprisingly organic shape, and each refraction of the surface creates a fascinating play of light. The On the Edge N°15 gold ring with blue sapphires set in it is a bold yet timeless proposal. Material: Gold Karat: 18K Stone: Sapphire Stone Carat: 0,045 CT Stone Type: AAA Stone Shape: Round Total approximate product weight: 2.24 g. Sapphire dimensions: 3 x (1.25 x 1.25 mm); 1.5 x 1.5 mm Ring width: 1x3mm Does it come with certificate? Yes Can the piece be engraved? Yes