From the Irene Neuwirth Gumball Collection, a perfect cocktail-sized Kingman turquoise sphere shines atop an 18k yellow ring with a 16mm. The ring is a size 7. This beautiful, one-of-a-kind ring features an 18 karat yellow gold setting and a 16mm Kingman turquoise sphere. A unique statement piece, this size 7 ring is a luxurious addition to any wardrobe.