This natural London blue topaz gemstone is perfect for making rings and jewelry. The gemstone has a pear shape and measures 8x12mm. It has a loupe clean clarity grade and an excellent cut grade. The gemstone color is blue and it has an asterism effect. This gemstone is transparent and has been irradiated. It is a vintage piece from India and was created in Brazil. The gemstone is from the M.Y.GEMS brand and is sold in a unit quantity of 500. The gemstone is perfect for those who enjoy making their own jewelry or for those who are looking for a unique addition to their collection.