This enchanting natural sapphire and diamond ring from the american blue sapphire™ collection is a gift that will always be treasured. 10k white gold a pear-shaped montana sapphire shines as the light indigo centerpiece, wrapped in a halo of pavé-set round-cut diamonds single round-cut diamonds shine atop the graceful twist shank total diamond weight is 1/8 carat from the natural precious gemstones by kay collection