Every gemstone Andrea Li works with has a story, where it forms, what makes one specimen exceptional, and how to care for it over a lifetime of wear. These guides share what she's learned from years of hand-selecting stones for her 14k gold, one-of-a-kind jewelry.

Whether you're drawn to the blue fire of moonstone, the ocean clarity of aquamarine, or the raw brilliance of a Herkimer diamond, start here. Each guide covers grading, sourcing, care, and what to look for when choosing a stone that's truly yours.