A fun set of 17 oval cut sapphires, in almost every color range, from Sri Lanka and Burma. Attractive as a mini-gem collection - or could be used to make a wonderful "sapphire rainbow" piece of wearable jewelry. We really like this one and highly recommend it for the price. Good cuts and excellent color saturation in these stones. And, all are natural untreated stones (assembled by semi-retired dealer Herb Obodda from his old dealer stock) .