Available here is a gorgeous, 100% genuine Roberto Coin necklace and pendant set. 16.5 inch solid 18k gold chain complete with signed and stamped closure and red/pink gemstone – maybe a ruby? There is an even smaller stamp on the closure that can’t be seen clearly in the pictures. It appears to be a serial number. The chain links have an incredibly detailed texture and really add the the look. The pendant is a beautiful 18k gold filigree with diamonds.