FORSTER HILLER stands for reliability, trust, and uncompromising quality in the world of high-end coloured gemstones. With a world-class focus on sapphires, rubies, garnets, and tsavorites, we offer a carefully curated inventory defined by consistency, precision, and beauty.

Built on decades-long first-stage relationships at the source, we ensure a steady supply of exceptional stones and perfectly matched colour melees, delivering both quality and dependability that our partners can rely on.

At the same time, we remain inspired by the natural world's endless diversity. We continuously seek out rare and unexpected stones and cuts, driven by a desire to spark the same sense of fascination and discovery in our clients that first drew us to gemstones.

Established in 1994 by Wolfgang Eberl, FORSTER HILLER is a long-standing supplier to renowned fine jewelry houses and goldsmiths across Europe.

While there is a lot to share, we prefer to let our stones speak for themselves.

Sophia Forster was raised in a family tradition of artisanal craftsmanship spanning master painters to goldsmiths — an upbringing that instilled in her an early fascination with materiality, individual creativity, and the fellowship of artisans bound by a shared devotion to their craft. She began her path into gemstones with a formal apprenticeship under Wolfgang Eberl, sharpened further by gemmological studies at GemA in London.

Gregor Hiller has treated the world as his backyard since childhood, having lived across more than eight countries. It was on a journey to Tanzania that he first encountered the world of gemstones, setting him on a path of continuous exploration into their vast beauty. For several years he trained in the gemstone trade under the guidance of Wolfgang Eberl, a practical education paired with formal gemmological studies at GemA in London.