The 179th Avenue: Checkerboard Cut Garnet and Natural Diamond Halo Ring in Yellow Gold. The focal point of this ring is a 9-millimeter by 9-millimeter cushion checkerboard-cut deep red natural garnet. Framing the center stone is a cushion-shaped halo adorned with round brilliant-cut natural diamonds. Below these stones, a series of fanned filigree adds intricate detail to complete the look. Crafted in 14 karat yellow gold, the ring is currently sized at 6.5.