Swift's garnet ring is selling fast, according to the brand's website, but the stone is also available honey quartz and sky-blue topaz, and re-stocked in London blue topaz while supplies last.

The actress, 29, tells PEOPLE the ring — a white gold blue topaz cushion-cut stone with a diamond bezel set that she got from her mom, Nancy Gansky, at 16 years old — had slipped off her ...