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. November's other birthstone ...

“Imperial Topaz!” she might have said. Kevin Mazur. For the 2020 Oscars, Florence Pugh wore a diamond Louis Vuitton necklace with a 21 carat Imperial Topaz, a gem with ties to Russian royalty.