The Tule River: Natural Emerald and Diamond Three Stone Ring in Yellow Gold. At the heart of this elegant ring lies a striking 0.20 carat square emerald cut natural emerald, radiating a medium, very slightly bluish-green hue with strong saturation. Flanking the center gem are square modified brilliant cut (princess cut) natural diamonds, boasting an approximate total weight of 0.14 carats by measurement. Meticulously crafted in 14 karat yellow gold, the ring, sized at 7, exudes timeless charm an Heart Cut Green Emerald Ring For Formal Occasions, Green Heart Cut Emerald Ring For Formal Occasions, Formal Green Heart Cut Emerald Ring, Elegant Heart Cut Emerald Ring Gift, Elegant Heart Cut Green Emerald Ring, Elegant Rectangular Emerald Ring With Prong Setting, Elegant Rectangular Emerald Ring With Center Stone, Elegant Green Emerald Heart Cut Ring, Elegant Green Heart Cut Emerald Ring