The ICA GemBureau has scanned its vast collection of colored gemstone varieties, most of which are held on 35-milimeter slides. This unique collection is the hidden treasure of the International Colored Gemstone Association.
      The Collection consists of hundreds of high-quality photographs of colored gemstones. The project was started in the mid 1980s by Cheryl Kremkow, the first GemBureau director and the first editor of the ICA gazette.
      Bart Curren of Vancouver, Washington was the photographer for most of the slides. He is a gem carver and cutter in his own right. Bart would tour the booths of ICA members exhibiting at the gem shows in the US, and would then choose a variety of cut stones to photograph.
 
Sapphire - Sri Lanka -- ICA/Bart Curren.
  

 
            Fire Opal - Maxico -- ICA/Bart Curren
 
 
      These would often be often special samples as well as stones from new locations or a newly discovered gemstone species. Various trade journalists have also donated photographs that they have taken.

      This information was provided courtesy of the Gem Bureau, the promotional arm of the International Colored Gem-stone Association (ICA). ICA is the world's single international umbrella organization that represents the interests of colored gemstone miners, manufacturers (i.e. cutters and polishers), and wholesale distributors.
 
 

Spessarite - Nigeria - ICA/Bart Curren.
Garnet.
Jadeite - Burma - ICA.
Sphalerite.