For a primer on some of the rarer gemstones out there, check out the “The Most Unusual Gems You’ve Never Heard Of” published in the New York Times on May 11, 2019. Christopher Smith, the president of AGL, lends his expertise and knowledge to help understand what makes some gems such as Red Beryl, Diaspore, Benitoite, Grandidierite and others extra special.
To read the article, visit — https://www.nytimes.com/2019/05/11/fashion/jewelry-rare-gems-tanzanite.html