Gem cutters - whether “gem whisperers” or mathematicians - create breathtakingly artistic individual gems and sculptures.
Read MoreCheck out some of the most interesting and unusual diamonds and coloured stones submitted to GIA’s laboratories in 2019.
Read MoreMineral inclusions trapped in diamonds reveal the continents’ construction – and help GIA researchers date diamonds.
Read MoreMicroscopic examination of a Mozambican pink sapphire reveals an inclusion with a surprising shape and composition.
Read MoreSeldom-seen inclusions are found in a host material that is rare in its own right.
Read MoreA cabochon displaying asterism is found to be an untreated spinel with two different stars.
Read MoreA recently identified mineral is found, in whisker-like form, in a gem-quality tanzanite host.
Read MoreAesthetically pleasing inclusions are found in topaz from Pakistan’s Shigar Valley.
Read MoreCharacterises a suite of 40 natural brown to black diamonds from this deposit so that they can be distinguished from suspected treated black diamonds.
Read More