The inference is clear. This beautiful key pendant, which comes with its own 18" gold chain, unlocks something very special and is thus beautifully hand crafted from 10K solid gold and studded with .41 carats worth of diamonds. At 1 5/8" in length, this is one of the largest diamond pendants in our collection. Made in the U.S.A., by hand, at our state-of-the-art factory in California. Customer satisfaction guaranteed.