Art Nouveau 0.50CTW Mine-Cut Genuine Diamond, 1.20ctw Royal Blue Sapphire, & Solid 14K White Gold Ring - This gorgeous ring is made of solid 14k white gold, and is done in a beautiful art nouveau style. The ring contains 0.50ctw genuine diamonds, with a stunning 0.25ct old mine-cut center (This is a deeper cut, showing the age of the diamond, as this is the way they used to cut diamonds in the early 1920's). The ring is also adorned with genuine blue sapphires, and has ornate, incised designs on the shoulders of the piece. Ring size: 6. (4.5 grams)