This stunning blue sapphire engagement ring features a GIA certified non heated 11 carat sapphire and very high quality baguette and round diamond accent stones. The solid platinum mounting is from designer Mr. Baguette. Sapphires this large are normally heated to artificially improve their appearance, but this stone is certified unheated and naturally magnificent. The sapphire features a very good cut, very good symmetry, and good polish ratings. It has strong saturation and a medium dark tone. It is 80% blue and 20% violet and is not heated or enhanced.