Featured in this lot is this Montana corn blue sapphire, diamond, and platinum ring. The ring features a platinum split shoulder art deco design to the ring frame and face with an 'Orianne' hallmark and a PT750 stamp. The ring features a pear cut Montana corn blue sapphire with a total weight of 3.06 carats. The art deco ring face is lavishly decorated with a total weight of 0.72 carats of round brilliant diamonds. The ring size is US 7 1/2.