BLUE SAPPHIRE
Due to the variance in color temperature, The Blue Sapphire has its own subcategories. Peacock, Royal, Velvet blues are the most commonly used colors, while Nave blue, Indigo, and Twilight come in second place based on the tastes of certain collectors. Blue Sapphire is usually cut into cushion, round, oval, emerald, pears, briolette, hearts, and marquise..
