GIA’s 64th Gemstone Gathering

GIA’s 64th Gemstone Gathering Present "Rubies and Sapphires from Eastern Africa" By Vincent Pardieu Supervisor, Field Gemology GIA Laboratory Bangkok [...]

By | December 26th, 2012|Tags: , , , |

GIA’s 63rd Gemstone Gathering

GIA’s 63rd Gemstone Gathering Presents "What’s been happening in the lab? A Bangkok Update" By Garry Du Toit Senior Manager [...]

By | November 28th, 2012|Tags: , , , |

GIA’s 62nd Gemstone Gathering

GIA’s 62nd Gemstone Gathering Presents "Opal Evaluation and Valuation" By Frank Farnsworth About  Frank Farnsworth Born in Nasuha NH, USA.  [...]

By | October 31st, 2012|Tags: , , , |

GIA’s 61st Gemstone Gathering

GIA’s 61st Gemstone Gathering Presents "The Evolution of Collector Gems - B Chart and Beyond" By Jeffery Bergman Director of [...]

By | September 26th, 2012|Tags: , , , |