6.5 CT. TOURMALINE & .25 CTW DIAMOND RING: 14K yellow gold ring centering a large emerald cut 6.50 Ct. tourmaline. YG in Hue, 7 in Tone and 2-3 in Saturation. 6 round brilliant cut diamonds, .25 CTW, rated SI1 in clarity and H-I in color. The tourmaline and diamonds are prong set. Weight: 5.2 grams. Size 6.25