Solitaire 1 Carat Diamond Engagement Ring in 18k Yellow Gold.  This delightful modern engagement ring features a thin shank adorned with accent diamonds and a 1.01 carat round brilliant cut set in yellow gold. The band below the primary stone is 18 karat yellow gold and contrasts the white diamonds beautifully as well as the white gold basket holding the 1 carat diamond. This is a wonderful engagement ring for someone looking for that solitaire shape with a bit more sparkle.