Vintage Van Doran 17" Necklace with Opal and Ruby Never Worn

This lovely Van Doran Necklace has a chain that is 17” long (unknown metal). The pendant with attached bale is approximately ¾ inches. The pendant features an opal and a ruby chip. This is a very nice necklace however it is not fine jewelry. It has never been worn. The necklace is in its original box. The original box has wear and damage.