Compared to the 8mm Peruvian blue opal stands (also purchased 1 strand from that batch: see review for same), this strand of Peruvian blue opal had much more intense blue in it with more of a dark brown matrix background. I'm frankly not quite sure why it was priced less than the 8mm rounds of Peruvian blue opal. I like the browner matrix and the in-your-face blue on the stones somewhat better. At the end of the day, I think that Peruvian blue opal has a fairly wide range of colors associated with it. Anyhow, it's a real keeper. Thanks again! :-)