This engagement ring is 95% platinum and 5% iridium and weighs 13.50 grams. The ring has a center stone that is a natural fancy black diamond. The shape is an original cut-cornered rectangular mixed cut with a checkerboard top. The measurements are 9.25×8.31×5.09mm. The diamond weighs 4.74 carats. The black diamond has a G.I. A. Report. No: 2155041292. There are fourteen natural round brilliant diamonds prong set around the center stone. These diamonds are 3.10mm each in size and have a combined total weight of 1.65carats. The diamonds are FG color and VS clarity. The ring is a handmade basket with an airline gallery and half round shank.