The Tiffany & Co 1837 Concave Sterling Silver Ring is a vintage piece from 1997 with a classic round design and a band width of 7mm. Signed by Tiffany & Co., this unisex ring is made of 925 sterling silver. It is part of the Tiffany & Co. Tiffany 1837 collection, featuring a timeless design. Made in the United States, this ring is a beautiful and elegant piece of fine jewelry that would make a perfect addition to any jewelry collection. Like new, barely worn. Ships USPS to 48 contiguous states and internationally.