This is no surprise since the stone is often referred to as "Imperial topaz." The nickname is said to originate from the Russian royal family's usage of the stone, according to GIA. Another ...
While topaz itself isn't rare, Harris reveals there's a special variety that gem collectors dream of, explaining, "Imperial topaz, an orangy-red variety primarily found near Ouro Preto ...
Blue topaz is a traditional fourth wedding anniversary gift, while Imperial topaz is for the twenty-third wedding anniversary, the Geological Institute of America reports. Citrine is the other bi ...
Some finds are not seen anywhere else in the world, including the rare Imperial Flame topaz, a 332-carat carving from Oura Preto, Brazil. There's also the incredible 9,630-carat marquise-cut gem ...