Sundance leather, ruby, sterling Neclace

This is vintage and I no longer know the name of it. It's a long adjustable leather necklace, beautifully constructed and I tried to capture the details. I put the heart charm on it so I wouldn't have to tie it. It's only been worn a few times. I did pay over 500 and it is definitely Sundance- ask any questions and I'd accept only reasonable offers - comes in the velvet pouch I stored it in.