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The F.D.C. Products Group F.D.C. PRODUCTS

Since first launching the 4°C brand in 1972, F.D.C. Products has endeavored to bring beauty and inspire the women of the world.

In its mainstay jewelry business, the F.D.C. Products Group’s distinctive jewelry brands continue to attract a wide and diverse customer base, including the flagship 4°C brand that has established a tradition of giving jewelry to young women on their 19th birthday in the hope of a happy life, as well as the bridal ring specialty store 4°C BRIDAL, classical-taste EAUDOUCE4°C brand, and casual jewelry brand Canal 4°C offering a wide range of everyday items.

Building on the strength of its SPA business that encompasses product planning through design to production, sales and marketing, F.D.C. Products is committed to becoming Japan’s leading jewelry company and an innovator of “Only One” brands by diversifying sales channels and developing its business overseas.

4°C is the underwater temperature at which the surface of a lake freezes, providing fish with a tranquil and safe sanctuary. In addition to its inestimable power, water freely changes its form and is the source of all life. These features provide the wellspring for the 4°C brand concept, which strives to instill pleasure, serenity and inspiration to a broad customer base.

» 4°C

Combining the beauty of carefully selected loose diamonds and the highest purity platinum with the abundant knowledge of skilled concierges, 4°C BRIDAL was launched as a bridal ring specialty store. Every effort is placed on providing unparalleled service and hospitality.


The aim of cofl by 4℃ is to build a beautiful relationship between the earth and jewelry.Our products are the accumulation of sustainable choices we make,using eco-friendly materials such as "Recycled Metal" and "Lab-grown Diamonds".

» cofl by4℃

Our heartfelt wish is to deliver a jewelry brand that connects people’s dreams and feelings. This wish is the wellspring for the Canal 4°C brand. Much like the natural flow of a canal, jewelry that engenders a sense of fun and scintillation helps connect to a myriad of emotions. Canal 4°C is a jewelry brand that delivers a gentle touch on any given day filling the heart with a smile and courage.

» Canal4℃

The words EAU DOUCE in French mean “soft water.” Distinguished by its lineup of mainly 18 carat gold and platinum items, EAUDOUCE is recognized as a premium, high-end 4°C brand.


Aesthetic awareness and artisanship of Europe and Japan create its brilliance.RUGIADA offers jewelries refreshing you every day, like morning dew shining on leaves from which the brand name derives.


A unique piece of beautiful minerals, born in the natural world. Embrace the untouched beauty of nature in the simplicity of everyday life. Be freer than you are. Fashion jewelry that embraces and complements your style.

Corporate Data
Representative Ichiro Okafuji(President and Representative Director)
Address 2-19-10 Kami-Osaki, Shinagawa-ku, Tokyo 141-8544
Business Activities Planning, manufacture and sale of jewelry
Established April 1986
Paid-in Capital ¥400 million