The Signature Solitaire is a conglomeration of the best we have to offer. The beautiful stones used in this line are of the highest quality and are reviewed by an independent gemology lab. The center stone weighs in at .56 carats with a color and clarity rating of E and SI2, respectively. The ring itself is a fine 18K white gold with a platinum crown setting with smaller diamonds set in the base. This regal ensemble is one of the finest  pieces that we have in the ring category.