Claudia Hamann Edelstein  was founded 1990 in Germany. Claudia Hamann Edelstein is an Accredited Ethical Member A.E.M. and member of the following associations: -International Colored Gemstone Association – ICA -German Gemological Society – FGG -Collegio Italiano Gemmologi Our specialization is in Emeralds from Colombia, Rubies from Burma ,Sapphires from Siam and Ceylon and fine Gemstones from Africa as Spinel, Tsavorite, Tanzanite, Garnet, Aquamarine and others,special cut Double Rose.