Jewelry, made by Japanese hands.
Crafted in Japan. Designed to stay with you.
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About januka
januka is a Japanese jewelry brand based in Tokyo, founded in 2012 by designer Jo Nakamura.Rooted in the idea of “slightly out of the paragon,” the brand reexamines traditional jewelry through a subtle shift in perspective.Working with skilled Japanese artisans, januka creates carefully crafted pieces that highlight the unique character of natural stones.
Made in Japan / Craftsmanship
All januka jewelry is made in Japan.
We work closely with small workshops,
where techniques are passed down quietly, over time.
Many of our stones are cut exclusively for januka,revealing patterns and expressions that are never exactly the same.No two pieces are identical —that subtle difference is part of their beauty.
Jewelry in Everyday Life
Materials / Care & Aftercare
Each piece is made using natural stones and precious metals such as silver and gold.januka jewelry embraces a certain fragility — a quiet balance between precision and sensitivity. Because of this, we value long-term care as much as creation. If your piece is ever damaged, we offer ongoing support and repair, so it can continue to age alongside you. januka operates a directly owned store in Tokyo and provides ongoing care and repair support, both in person and remotely.
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Store in Tokyo
januka operates a directly owned store in Tokyo, Japan. Our store is a quiet space where you can experience the jewelry in person, see the individuality of each piece, and receive personal consultation. We also offer care and repair services at our Tokyo store. For customers outside Japan, we provide support remotely, so you can feel confident purchasing and owning januka jewelry from anywhere in the world.
Need help?
Frequently Asked Questions
You can try on our jewelry at our directly managed store in Aoyama, Tokyo. Please note that this is our only physical retail location.
Reservations are not required; however, we recommend making an appointment if you would like to take your time viewing the pieces. Walk-ins are welcome, but please understand that customers with reservations will be given priority. Appointments can be made through the reservation form on our website.
You can also view our collections at our pop-up events held twice a year at Isetan Shinjuku and once a year at Hankyu Umeda in Osaka. Event schedules are announced on our website news page, social media, email newsletter, and LINE.
To help you enjoy your cherished jewelry for years to come, we offer repair and cleaning services. Feel free to contact our support desk for assistance with issues like deformation, faulty clasps, or routine cleaning. Please note that repairs may take several weeks depending on the work required.
It depends on the item.
One-of-a-kind pieces, such as those in our natural stone collections (BAND, SLICE) and diamond collections (POSITION, FRAME DIAMOND, NATURAL DIAMOND), cannot be recreated exactly once sold out, as we value the unique character of each individual stone.
However, we may be able to create a custom order using a stone with a similar look and feel. Pricing and delivery time vary depending on the details, so please contact us with the product name and your specific request.
For other standard items, restocking may be possible even if they are temporarily out of stock. Please feel free to inquire about availability and estimated restock dates.
Information about new arrivals and restocks is updated regularly on each product page and on our social media channels.
To ensure you can shop online with confidence, we provide size guidelines on each product page. If you're unsure about sizing, our staff will be happy to assist you via phone, email, or online chat. Please feel free to reach out.
Yes, we offer international shipping.
Shipping fees vary depending on the destination country and will be automatically calculated and displayed at checkout. All international orders are shipped via DHL.
Please note that customs duties and import taxes may apply. If incurred, you will be contacted by the shipping carrier during customs clearance. Any such charges are the responsibility of the customer.
If you have any questions, please feel free to contact our support team.
ALL ITEMS
If you have any questions or would like to receive the latest updates from januka, please feel free to add us on LINE.
