Large opal stone long gold necklace

Unknown brand, however perfect opal necklace (approximately 2.5 inches length and 1 inch width for the pendant) Has a thick approximately 15 inch length gold chain with a 2 inch extension Lobster clasp Took as many photos of this beautiful pendant necklace. Not my style but looking for a new home for someone who will use it. Make me an offer! Let me know if you have any questions!