A half circle of round brilliant diamonds all point to the stunning focal point: a green semi-precious Tourmaline stone. A creation with a hint of art deco. Each Lore Van Keer piece is designed and hand-crafted in their atelier in Belgium. Material: Gold Karat: 18K Stone: Diamond & Tourmaline Stone Colour: White & Green Number of Stones: 11 Available sizes: 49,50,51,52,53,54 Dimensions: Ringband: 1.2mm Does it come with certificate? No Can the piece be engraved? No