These are eye clean swiss blue topaz gems from Directstones. Swiss blue topaz gems are the bright blue shade of blue topaz gems. Each of these swiss blue topaz stones has been handpicked and custom cut by some of Thailand's finest gem cutters. Directstones welcomes orders for even single piece requirements and there are no minimum limits for value or volume of your order. You can see this and other blue topaz gems on the directstones website at http://www.bluetopaz.directstones.com/blue-topaz-gemstones-01.htm