Metal18k Gold Vermeil - NO SQUARE CHARM - ONLY CROSS CHARM ON THE CHAIN What Is Vermeil? Vermeil (that’s pronounced ver-may) is a gold plating technique that dates back to the 19th century. While other jewelers plate over less durable metals, our vermeil starts with a Sterling Silver base and is plated with just over 2.5 microns of 18k Gold to create a more timeless piece, worthy of the Demi-Fine name. How to Care for Demi-Fine Jewelry Size0.98"L X 0.38"W removable Cross Charm, 20"L chain