23 x 17mm, 20 x 12mm, 19 x 11mm. You will receive a hand carved set of three top drilled Pink Peruvian Opal flowers. Natural in color, the shapes follow the natural contours of each stone. There may be some dark spots, or natural inclusions, but this just adds to the beauty of them. This is a fantastic price for this set. Peruvian Opals are formed when water becomes trapped within quartz. So, it has a natural beauty that is very attractive. Peruvian Opal is said to stimulate creativity and helps ideas flow more freely. It also helps us face the future. If you are looking to improve your psychic ability, it will do that too. Have any old wounds? Well, Peruvian Opal is also known to release the trauma of old wounds. And, to top it off, this stone also aids in restful sleep.