An outstanding natural Colombian emerald and diamond bypass ring set in a platinum and 18K yellow gold setting. The vibrant Colombian emerald is a rare Old Mine-cut stone weighing a superb 3.98 carats and is A.G.L. certified to be of Colombian origin and all natural. While virtually all emeralds are treated with oil in order to improve their appearance, this large emerald has not been treated in any way and thus retains an unmatched level of clarity and color. The diamond is 4.02 carats cut in the brilliant style and G.I.A. certified H color, SI1 clarity. To acquire an untreated Colombian, Old Mine emerald is to acquire one of only a very, very few high-quality emeralds known to exist.

The term Old Mine refers to the precious sto