Estate 18KW Pave Diamond Semi Mounting Engagement Ring. This empty setting engagement ring is crafted in 18 karat white gold featuring natural diamond pave including a halo style center, ready to remount your old diamond, or gemstone, or create the perfect engagement ring for the love of your life. The 18K white gold ring features round brilliant cut natural diamonds at .88 carat total weight. This beautiful engagement ring setting weighs 6.42 grams and is a size 6.75.