I don’t know if this qualifies as a Paraiba but to be technically accurate, it is a <?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:country-region w:st="on"><st1:place w:st="on">Mozambique</st1:place></st1:country-region> cuprian. It is a 2 ct trillion cut by Gene of Precision Gems.  It was originally a steely purple, but as you can see, when heated, changed colour into the famed Windex blue.<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />