Lucy Williams Square Malachite Necklace | 18k Gold Vermeil/Malachite. A Semi-Precious Addition to Your Layers. Paired with a Delicate Chain, the Square Malachite Pendant, Known as the Transformation Stone, Creates a Distinctive Focal Point. Layer this Best Selling Piece with a Longer Necklace or Coin Choker for a Lucy Williams Duo You'll Never Take Off. Also Available in Onyx. Layer for Less When Bought as a Set Iconic Lucy Williams Malachite Necklace Set. Metal: 18K Gold Plated Vermeil on Sterl