Founder's Emerald Cut Diamond Eternity Band 420YThe Tacori 420Y is an 18k yellow gold emerald cut eternity band from the Founder's Collection, set with 5. 30 carats of step cut diamonds running the full circumference in shared prongs. The side profile reveals a fine row of pav diamonds lining the interior edge and the Classic Crescent inner face creates windows of light beneath the stones. A diamond eternity band that works as a wedding band, a stacking piece or entirely on its own.