Australian black opal and 14k pendant

This is a lovely small 14k yellow gold pendant from Lightening Ridge Australia. Holds a solid black opal with green and blue flash These solid opals have become very expensive since the mine closed a while back. You can see the black host rock(potch) in the back, this is not a doublet or triplet( slices placed on rock) which really dont have as much value. Because this is smaller, at approx 1.54 carats, and is vintage, the cost is more affordable. 1 1/4 inches long and about 1/4 inch wide. The stone is intact. Really sparkles in daylight. Can place this on a fine yellow gold chain with an o ring closure, also great to layer.