A diamond ring is a piece of jewelry that features a diamond as its centerpiece. Diamond rings can come in a variety of styles, designs, and settings, ranging from simple solitaire rings to more intricate multi-stone settings. The value and price of a diamond ring will depend on various factors, including the cut, clarity, color, and carat weight of the diamond, as well as the metal and design of the ring setting. Stone sizes Big stone 4 mm small stone 1.5mm small stone 1.3mm Ring size USA 5 TO Ringsize USA 10