About us
"Beyond Beauty, a Timeless Connection"
At Miseki, we create more than jewelry; we craft timeless connections and luminous stories that transcend generations. Celebrating the harmony of tradition and modern elegance, our pieces become the radiant highlights in the beautiful narrative of your life.
Since 1967, as a Japanese-owned store located in Japantown San Francisco, we have been delivering the essence of Japanese craftsmanship and tradition, a commitment that continues today and will thrive for years to come. The blend of Japan’s rich heritage with the vibrant atmosphere of San Francisco creates a unique ambiance where Miseki, meaning "beautiful stone（美石:みせき)" in Japanese, began its journey of illuminating lives with the artistry of jewelry.
At Miseki, we believe that every piece you wear illuminates a precious chapter of your life, bringing radiance and depth to your narrative. We offer artifacts of genuine artistry, coloring the lives of many and inherited across generations.
Through the beauty and heritage of Miseki, may your story shine ever bright, ever beautiful.
-Miseki-
DISCOVER OUR HISTORY
March 28, 1967
A Legacy Begins
Miseki Jewelry is founded in San Francisco by Kenji Kaneda, President of Mikuni Industries.
March, 1968
Our First Flagship
Alongside SF Japantown Center’s grand opening, Miseki Jewelry opens its doors, marking our first step into the heart of cultural heritage.
1970
Masaharu Nagasuga will become the General Manager of the San Francisco store, eventually succeeding as the second-generation president.
1972
In 1972, the 2nd Miseki Jewelry store was founded at the Hilton Hawaiian Village. It is now closed.
1974
In 1974, Miseki Jewelry opened a branch store, "Jewels of Sadao," in Mexico City, CDMX, Mexico, in collaboration with Sadao Mochizuki. It is now closed.
1976
In 1976, the 3rd Miseki Jewelry store was founded in Harajuku, Tokyo, Japan. It is now closed.
1977
In 1977, the 4th Miseki Jewelry store was founded at The Westin Bonaventure Hotel & Suites in Los Angeles. It is now closed.
October, 1982
The Era of the 2nd Owner
Masaharu "Mike" Nagasuga assumes the role of the 2nd Owner of Miseki Jewelry, continuing its legacy of excellence.
1993
In 1993, the 5th Miseki Jewelry store was founded at Yaohan Plaza in Little Tokyo, and operated until 1999.
2002
Recognized for over a decade of contributions to the Northern California Cherry Blossom Festival, we received a Certificate of Appreciation from the City and County of San Francisco on April 13, 2002.
September 30, 2023
Transition to the Third Generation
On September 30, 2023, Masaharu “Mike” Nagasuga formally entrusted Miseki Jewelry to the next generation. This marked the end of over 50 years of dedicated leadership, paving the way for a new era to begin.
October 1, 2023
The Era of the 3rd Owner
Asuka Saito & Tom Yamashita assume the role of the 3rd Owner of Miseki Jewelry, continuing its legacy of excellence.
Trusted Since 1967
Our owner, Asuka Saito, is certified by both Gemological Institute of America (GIA) and Cultured Pearl Association of America (CPAA), and we also have a GIA-certified appraiser on staff. Asuka is also a color specialist, certified as a TC Color Therapist and Sensational Color.
As the third-generation owner of Miseki Jewelry, Asuka continues the brand’s long-standing legacy in San Francisco’s Japantown. With over 15 years of experience, she specializes in Japanese craftsmanship, pearl expertise, and design innovation.
She has been featured in Harper’s Bazaar, Vogue, and GQ, and is an advocate for sustainability, having visited Colombian gold mines to support ethical sourcing.
Asuka has also contributed to the local community by designing jewelry for the Northern California Cherry Blossom Festival Queen Program for nearly a decade.
Tom brings a creative vision to Miseki Jewelry as a multimedia creator and communications officer. His work spans photography, animation, and brand storytelling, featured in British GQ and Harper’s Bazaar.
He oversees the watch division and provides expert insights on pearls. As an international design competition judge, he ensures every piece at Miseki reflects timeless value and Japanese excellence.