I have seen a LOT of these over the years but this one, for the thickness and clarity of the crystal, really stands out. The crystal measures 2 cm tall, and 1.5 cm thick - unusually thick for a crystal of this size but beyond that you will notice the superb symmetrical form of the crystal featuring a well-developed central face that is absent on most topaz specimens. I have not seen comparable quality of this material mined since the mid-90s. 2.9 x 2.6 x 1.6 cm