Rating: BC. Condition description: Items with the grading BC are in better than average condition. There are signs that the item has been used previously but in general they are clean and tidy. This exquisite Tiffany Co Knot ring is a timeless piece of jewelry Crafted from sterling silver and accented with 18k gold it features the iconic Tiffany knot design Perfect for everyday wear or special occasions. Classic Tiffany & Co. Knot design. Sterling silver with 18k gold accent. Timeless and elegant style. Perfect for everyday or special occasions. Luxury designer jewelry.