Alexandrite, with its chameleon-like qualities, is a rare variety of the mineral chrysoberyl. Its colour can be a lovely green in daylight or fluorescent light, changing to brownish or purplish red in the incandescent light from a lamp or candle flame.
Read MoreThis section, from the Spring 1995 issue of Gems & Gemmology, is a compilation of interesting finds from GIA's laboratories.
Read MoreThis section, from the Spring 1993 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Spring 1988 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Autumn 2005 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Read More
This section, from the Autumn 1983 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreA compilation of gem news from around the world, covering topics such as localities, unusual gem materials, market news, new products, discoveries, jewellery manufacturing techniques and industry trends.
Read MoreThis section, from the Autumn 1987 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Read MoreThis section, from the Autumn 1992 issue of Gems & Gemology, is a compilation of interesting finds from GIA's laboratories.
Read More
This section, from the Spring 1983 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Read More
