This is a nicely sized heart slide pendant. The pendant is sterling silver with a swish of 10K yellow gold coming down the center of the heart. The heart measures 1-1/4" wide and just shy of 1" tall. The heart comes on a 23.5" large link Italian sterling chain. You could easily wear this pendant on any chain from thin to very thick. It is hallmarked both 925 and 10K on the back. The heart is a beautiful openwork style design. All the better that you can wear it with either silver or yellow gold.