Each one of these is struck from an individual 24k gold slug.

Because of this, they are irregular in size. They measure about 1/2 inches in diameter.

They have a 14k bail ( the attachment at the top which the chain goes through) which is a harder metal and better to handle the constant rubbing by the chain.

This comes with a 16' 14k gold chain
$508

AH, in Sterling Silver with 16& Sterling Silver chain
$65