This is listing is for a wonderful set of Benitoite ranging in color from orange..... to colorless to deep blue. Orange Benitotie is VERY RARE! It is the rarest color in benitoite as only a very very small percentage below 1% are orange! In order to get orange benitoite, you must heat a perfect white stone! If the stone is not completely white, then the stone will not turn orange. Also the stone needs to be 100% clean or it will explode when heating! Less than 5 people know how to heat a white benitotie and make it orange! This set is a must for a collection! All stones are cut perfectly with no flaws and have great dispersion. Each stone measures 2mm and they have a total weight of .33cts. If you have any other questions please feel free to ask.