Vault Sale Special: The Nautilus brooch with tourmaline and diamonds is a one-of-a-kind creation. Handmade by one of our beloved jewelers, Vladimir. The 18k yellow gold frame features a Reddish Brown 2.3ct Tourmaline. Capturing the natural beauty of the Nautilus with white gold and diamonds. A work of art from our upstairs studio in Freeport, Maine.