Yamanashi’s history with Gemstones

The region's connection to gemstones stretches back to the Edo period, when quartz was first mined in the mountains. Nestled between majestic peaks and lush valleys, Yamanashi offered natural deposits of clear quartz that quickly caught the attention of skilled artisans. Craftsmen in Kofu, the heart of the prefecture, developed advanced polishing techniques that transformed raw stones into dazzling gems, earning the region a reputation for precision and artistry that spread across Japan.

Today, Yamanashi proudly produces one-third of Japan’s jewelry, continuing a legacy that blends centuries-old craftsmanship with modern innovation. The city of Kofu, once a quiet center for stone cutting, has grown into a hub for both traditional and contemporary jewelry design, attracting craftsmen and collectors alike.

The Signature Stones of Yamanashi

Quartz (水晶 – Suishō)

Quartz is the stone most deeply tied to Yamanashi. Known for its clarity and glass-like brilliance, it has long been treasured for its natural beauty and spiritual significance. In Japanese culture, quartz is said to bring harmony, clarity of thought, and protection to its wearer. Local quartz is meticulously cut into beads, cabochons, and faceted stones, forming the backbone of both traditional designs—like prayer beads and omamori charms—and modern jewelry pieces appreciated worldwide.

Amethyst & Citrine

These are naturally occurring varieties of quartz that showcase the versatility of Yamanashi’s gemstones. Amethyst, with its soothing purple hues, is believed to offer calm, protection, and mental clarity, while citrine, with its warm golden tones, is associated with abundance, positivity, and success. Together, they demonstrate the range of beauty that can be achieved from a single type of mineral, inspiring both local artisans and international designers.

Peridot

Often called the “evening emerald,” peridot is a rare gemstone that shines with a vibrant green glow. Yamanashi is one of the few regions in Japan where peridot occurs naturally. Under sunlight, the stone seems to radiate a gentle, calming light, symbolizing peace, happiness, and renewal. Its rarity and captivating beauty make peridot highly prized among collectors and jewelers alike.

Other Stones & Modern Craftsmanship

While Yamanashi is historically linked to quartz, modern jewelers in Kofu have expanded their horizons. Today, stones from around the world—sapphires, rubies, emeralds, and more—are imported and shaped with the precision techniques developed over generations in Yamanashi. This combination of local craftsmanship and global sourcing creates jewelry that is both uniquely Japanese and internationally admired.

A Legacy of Craftsmanship

What makes Yamanashi jewelry so special is not just the stones themselves, but the hands that shape them. Many artisans continue to follow techniques passed down for generations, blending patience, skill, and a deep respect for nature. From hand-polished facets to intricate settings, every piece reflects a harmony between the natural beauty of the stone and the artistry of its maker.

Visitors to Kofu and surrounding towns can witness this legacy firsthand. Workshops and studios offer a glimpse into the meticulous world of gemstone crafting, where even the smallest details are treated with care. For collectors and enthusiasts, owning a Yamanashi-crafted piece is like holding a piece of the region’s rich history in their hands.

Why Yamanashi Jewelry Matters

In an era of mass production, Yamanashi stands out for its dedication to quality, heritage, and creativity. The region’s gemstones are not just decorative—they are expressions of centuries of knowledge, artistry, and reverence for the natural world. Whether it’s the clear brilliance of local quartz, the soothing purple of amethyst, or the rare glow of peridot, Yamanashi jewelry carries the story of a place where nature and craftsmanship meet.

For anyone passionate about jewelry, history, or Japanese culture, exploring Yamanashi’s gemstone tradition offers more than just beautiful stones—it provides a window into the artistry, resilience, and vision of generations of craftsmen who have shaped the identity of the region.