1.23ct SAPPHIRE DIAMOND COCKTAIL RING PLATINUM HALO CLUSTER OVAL MARQUISE SHAPEWhy we love it: This elegant cocktail ring features a rich blue sapphire surrounded by a unique clustered halo of round and marquise cut diamonds. Highlights: 0. 73ct natural sapphire center with a very well saturated blue hue 0. 50ct of high quality bright white and completely eye clean G H VS1 SI1 diamonds High quality platinum setting Dimensions: 10. 4mm across (north south) and 5. 3mm from the finger to the top of the ring.