The necklace is made of sterling silver and the the chain is adjustable between 16 and 18 inches in length. Slide the bead all the way to the silver heart end and you will be at the 18 inch mark. The chain is a wheat chain and it has a lobster claw catch. The orange stone in the pendant is carnelian. The pendant measures 20 millimeters long and 5 millimeters wide. This item is hand made by John Kennedy the jewelry designer. This item weighs 5.6 grams. I will provide a pendant box.