Low Dome Princess Cut Solitaire Engagement Ring A princess cut Lab-Grown Diamond, IGI certified, held at its four corners by V-prongs above a smooth 2mm low-dome band of 14K gold. A crisp square on a soft curve. Choose 1.5, 2, or 2.5 carats in yellow, white, or rose gold or platinum, made to your size at my bench in Woodside, Queens. Maximu