I'm a jeweler and GIA certified gemologist, and I'm selling off some of my gemstones to make room for new inventory. I purchased these tanzanites from a reputable vendor at an industry trade show. The stones are approximately 4.8 x 5.9mm. The depth of the stone from table to culet is approx 3.5mm. The two are a great match and have beautiful blue/violet color. The pair would make gorgeous earrings. I am selling them for less than I paid wholesale for them. I have attached images of the stones taken at 10x magnification so that you can see their clarity.