The term “signature Swarovski color” usually refers to Crystal Aurora Borealis, often written as Crystal AB.
Meaning of signature color
Swarovski is known for having many crystal shades, but Crystal Aurora Borealis (Crystal AB) is described by the brand and trade as its trademark and most popular color effect.
This coating gives clear crystal an iridescent, rainbow-like sheen that has become strongly associated with Swarovski crystals.
If you were choosing from options
When multiple color names are listed, the “signature” choice is typically the one that includes Aurora Borealis or is labeled Crystal AB.
If your list includes “Crystal AB,” “Aurora Borealis,” or “Aurore Boreale,” that is the signature Swarovski color among the options.
