Blue Topaz is a kind of topaz that’s one of the most liked and most valuable. Blue topaz is the state gemstone of the US state of Texas. In this lot are 4 sets of topaz gemstones totaling to a weight of 44.0CT. The first set of gems are six topaz in emerald the gems measure 6.96x5.03x3.05mm, 6.94x4.80x2.80mm, 6.04x4.04x2.55mm, 6.03x3.95x2.90mm, 5.90x3.84x2.66mm,and 5.85x3.98x2.81mm, these six gems have a weight of 5CT. The next set is thirty two gems in an oval cut measuring 4x6mm with a total weight of 15CT.The next set is round cut topaz, twentytwo 4mm,one 4.5mm and one 3.75mm for a total weight of 7CT. The last set of topaz gems are seven round cut gems. Six are 8mm, and one is 9mm for a total weight of 17CT. These gemstones have great clarity and with a hardness grade that makes the excellent for jewelry.