Update his attire with this sophisticated gemstone ring. Crafted in warm 10k gold, this design features an 8. 0mm cushion-cut rich black onyx set between diamond-accented collars. The ribbed center of the shank gleams with a satin finish while stepped polished borders add depth to the design. Great for everyday wear, the inside of the shank is rounded for comfort. Buffed to a brilliant luster, this ring complements all his favorite looks.