2.3 Carat Sapphire Lou Mid-Century Style Bridal Set - Size 6.5Sizing Guide One of a Kind Jewelry 2. 30ct. tw Blue Sapphire & White Baguette Diamonds with Filigree Engravings in 18k White Gold *One of a Kind Piece Size 6. 5* This sapphire and diamond 2 piece bridal set praises Mid Century high fashion ideals, the most well established era for luxurious fine jewelry. A pedestal of delicate prongs carries the center blue sapphire gemstone, and arches of milgrain dual lined metalwork carry each baguette diamond.