Circa 2010, 22k/18k, by Helen Blythe-Hart, American. Helen Blythe-Hart is an American goldsmith of international renown. This is a fabulous example of her one-of-a-kind artistry. Spectacular, contemporary design this ring features a 14.65-carat peridot, 1.52 carats of brilliant white diamonds (F color VS clarity), padparadscha sapphires, rare yellow tourmalines, and tsavorite garnets, it is an organic landscape of color and excitement. Excellent condition.