6.06 Cushion Cut Sapphire Engagement Ring 18kThis 18 karat yellow gold engagement ring features a 6. 06 carat cushion cut blue sapphire set flush with the band's surface. The cushion cut showcases the sapphire's deep blue color through rounded corners and large facets that create broad flashes of light rather than the constant sparkle of brilliant cuts. Two Cadillac cut diamonds totaling . 75 carats flank the center stone, their tapered trapezoidal shape providing geometric contrast to the