9ct Yellow Gold Created Emerald & Lab Grown Diamond Ring TDW 0.41CTAdd some colour with this gorgeous created emerald ring. Crafted from 9ct yellow gold, the design features 4x 3mm round created emeralds alternated with 3 brilliant cut white lab grown diamonds set along a straight band. TDW 0. 41CT Lab Created diamonds have the same characteristics as natural diamonds but are grown in a laboratory.