Beautiful Natural Australian opal pendant with chain- necklace! Made in solid 18k yellow gold. chain 18k gold and can not be separated from the pendant - please see photo. Can be worn at the length of 15-16? - see photo. The opal itself approx 20mm drop shape! It is very domed and thick cabochon which is rare because usually Australian opals come in thinner slices. The opal is untreated darker bodied Australian opal - semi black. Solid and natural -not doublet and not a triplet, it sits on a non opal host mineral. Please see photos. The item in excellent as new condition and the opal has no cracks, no craziness, no nicks and no any damages! beautiful item! Great for a opal lover or as Birthstone for October -this is untreated opal Fast free USA shipping. Internationally as well. Smoke free environment! Can be gifted or worn immediately! Great item with no problems! Thank you!