Gorgeous large piece of famous Australian Matrix Boulder Opal From Queensland Australia 100% natural untreated Cut & Polished by myself This beautiful cabochon is ready to be made into a large pendant or simply for the collectors. Very fine example of Yowah famous matrix opals Beautiful pattern on both sides They say boulder opal enhances mental clarity & physical well-being. My favourite type of Opal I like to work with Dimensions are: 50 x 24 x 9 mm Weight: 133.8 cts photos are taken with a Samsung galaxy S7 phone in natural day light. Not enhanced or photoshoped This Cabochon will be sent via registered mail with a tracking number Feel free to contact me if you have any questions Thank you Hisham Boulder Opal, Matrix Yowah Nut, Opal Cabochon, Koroit Australian Cab