Editor’s Note
Mico Jewelry Shop, a prominent online retailer, is expanding its physical presence with a new atelier in Tokyo’s Kodemmacho district, opening February 13, 2026. The launch will be celebrated with an exclusive collection of vintage luxury pieces and rare gemstones.

Online jewelry store “Mico Jewelry Shop,” operated by Sweet Compass Co., Ltd. (Location: Chiyoda-ku, Tokyo; Representative Director: Mihoko Hatagoe), will open an atelier in Kodemmacho, Tokyo, on Friday, February 13, 2026. To commemorate the opening, a specially curated collection will be introduced, featuring vintage Cartier and Van Cleef & Arpels pieces, as well as rare Paraiba tourmalines. We hope you will enjoy the experience of seeing and handling the pieces in person, taking your time to make a selection.
In recent years, with the expansion of the e-commerce market, online purchases have also increased in the jewelry sector. However, for high-value vintage jewelry and rare gemstones, there are intrinsic values such as “brilliance,” “depth of color,” and “texture” that cannot be fully conveyed through photographs alone. We believe that for rare stones like Paraiba tourmaline and alexandrite, which are noted not only for their beauty but also as investment assets, their true worth can only be understood by seeing them in person.
Located in the quiet environment of Kodemmacho, easily accessible from Nihonbashi and Ningyocho, the atelier allows you to leisurely savor the allure of gemstones.
To commemorate the opening of the atelier, we have prepared the following special collection. Each piece is highly rare and seldom appears on the market.
Vintage Cartier Corinth Ring

A vintage Cartier ring featuring a cabochon-cut emerald and pavé-set diamonds. Its charm lies in its timeless design and assured quality.
Mikimoto Choker Necklace
A collaboration line with designer Itsuko Ueda, a supplier to the Imperial Household. This special piece fuses Japanese aesthetics with sophisticated design.
Paraiba Tourmaline Earrings from Batalha, Brazil
Paraiba tourmaline with a deep, intense neon color that is now very difficult to obtain. The Batalha mine in Brazil is already closed, and Paraiba of this quality is expected to become increasingly rare.
Half-Eternity Ring with 0.72ct Brazilian Alexandrite
Featuring a substantial 0.72ct of large, top-quality alexandrite stones. Enjoy the mystical brilliance that changes color depending on the light source.
Vintage Van Cleef & Arpels Alhambra Jadeite Earrings
An Alhambra piece with jadeite, now extremely rare. The brand’s iconic design and the deep green jadeite create a striking elegance.

In addition, we also have vintage watches available, such as the Rolex Chameleon and Omega Diamond Bezel Solid Gold Watch.
Name: Mico Jewelry Shop Atelier
Address: 1-7-6 Iwamotocho, Chiyoda-ku, Tokyo 101-0032, KITEN Iwamotocho 1F
Access: 3-minute walk from Kodemmacho Station on the Tokyo Metro Hibiya Line
Opening Date: Friday, February 13, 2026
Business Hours: 11:00 – 18:00 (By appointment only for the time being)
*Plans to open to the public on Fridays and Saturdays in the future.
Regular Holiday: Sundays

Reservation Method: Please make a reservation via the contact form on the official website.