5 carat Unheated Blue Sapphire Diamond Heirloom RingThis sapphire ring is designed with the presence of a modern heirloom bold, luminous, and unmistakably refined. Its oval blue sapphire commands the center with depth and rarity, while the surrounding silhouette gives the piece a regal structure that feels both powerful and elegant. At the heart of the design, the unheated blue sapphire is framed by a halo of round brilliant diamonds that intensify its color and brilliance. The split shank is adorned