Please fully read description for measurement details. With faith of a mustard seed, you can tell this mountain to MOVE! Nothing shall be impossible for you. Matthew 17:20 A simple, elegant necklace to wear every day. The circle disc represents how God surrounds us in all things, and that it only takes a little bit of faith to move mountains! Hand set mustard seed charm with silver disc is attached to an 18 inch link chain. The circle discs are not all identical, some have variation in shape/form. The circle disc does have a more shine finish. This necklace is light-weight, and is supposed to be as such, it is very comfortable to wear. Remember that this is a handmade item. It is made individually, not by a machine, so there will be variations. Each item comes gift packaged with a scripture tag that includes Matthew 17:20. All items are made from lead and nickel free materials. Circle measures approximately 1.25 inches, and mustard seed charm measures approximately 3/4 inch. This item is not sterling silver. More faith based items are available by searching The Rinnah Toolbox on Google. If you are unhappy with your purchase, you are welcome to send a message to the number listed on the card enclosed with your order. I work very hard to provide handmade, faith based items for you to wear and enjoy! Thank you so much for your purchase!