The term “Imperial topaz” is not a well-defined standard in the gemstone industry. Different dealers may use the term to refer to different shades of topaz, ranging from orange to pink to red to purple. However, regardless of the terminology used, what determines the value of a topaz is its color, not the label given to it.

In other words, the value of a topaz gemstone is primarily determined by its color quality and saturation, rather than the name given to it by a dealer. The term “Imperial topaz” is not necessarily a guarantee of a particular color or quality, and buyers should rely on their own assessment of the gem’s color to determine its value.