Beautifull Untreated australian opal from lightning ridge,multicolor Grams:7.9 Carats:39.5 Sizes:from 10mm to 15mm Australian opal, like other opal varieties, is attributed with metaphysical and healing properties in lithotherapy, such as enhancing creativity, imagination, and self-esteem, emotional healing, and increasing passion and love. It is also believed to aid spirituality, cosmic connection, and the release of inhibitions. Photos have been taken wet and whith light to highlight its true color for reference purposes. Please be aware of the measures,what you see in the photo is what you get.