Superb 18k Gold Platinum & ~.5ct Diamond Semi Mount Ring Setting for ~6mm Stone

Presented is a stunning 18 karat gold, platinum and diamond semi-mount ring setting. This is a modern setting, made by Unigem, an American company. The ring is designed for a round cut stone, with four prongs in the eye of a swirl design. On either side of the empty setting are 32 total baguette cut diamonds, 16 on each side. These are vibrant,  dazzling stones of G-H color and VS-1 to VVS clarity, totaling at least 50 points (half of a carat) in weight. The diamonds are set in platinum so they really pop, and the head of the ring, in the center of the swirl, is platinum as well, so it is ideal for a diamond. The setting measures about 6 millimeters in diameter, measuring from inside the notches, directly across where the stone would sit. Of course the measurements are not hard and fast requirements for the stone size, as a jeweler can manipulate the prongs to accommodate a variety of sizes, but these measurements give a general idea. The ring is in great condition. The diamonds are