CON NECKLACE 1
International: ¥7,000 (some regions excluded)
Customs duties and taxes are the responsibility of the customer.Please contact us for more information.
The CON series was created to mark the brand’s 10th anniversary.
The idea of continuity is translated into form by setting an approximately 3.5 mm diamond between a sequence of K18 yellow-gold tubes.
Neither fully inside a frame nor completely outside it. Named after the prefix “CON,” meaning “together,” the series is built from the continuity of circles created by gold tubes and diamonds.
Two gold circles and one diamond form three overlapping rounds, creating depth within a minimal composition. The necklace is approximately 42 cm long with an adjuster.
| Material | K18YG , Diamond |
| Size | diamond size:3.5mm 全長42cm+アジャスターチェーン(長さ調節可能) <size chart> |
Choose options
Size & Fit
The top is compact and easy to wear every day, almost like a personal talisman. At 3.5 mm, the diamond is large enough for its character to be clearly felt and has satisfying presence on its own.
The short version places the circles vertically. A round frame, a diamond, and another round frame overlap in continuous sequence, creating a design that is geometric yet carries a slight softness. With a simple shirt or T-shirt it becomes a subtle accent, while it also sits naturally with more polished clothing such as jackets and dresses. Add matching CON earrings for a timeless, coordinated combination.
Details
Circular frames continue in sequence with a diamond set at the overlap. Unlike a conventional setting in which the stone sits within the frame, januka’s original technique secures the diamond between continuous gold tubes, neither fully inside nor outside.
The familiar structure of “a diamond surrounded by a circular frame” is taken apart and reconstructed by keeping each frame independent while linking them continuously. Two circles and one diamond form a single rhythm, with the relationship between gold and diamond shifting subtly depending on the viewing angle.
Two gold circles and one diamond create three overlapping rounds, giving depth to an otherwise minimal composition.
CON Collection
Created to mark januka’s 10th anniversary,
The series features januka’s original setting technique, in which diamonds are placed between a sequence of gold pipes—neither entirely enclosed within a setting nor positioned outside of one.
The minimalist design evokes the continuous passage of time into the future, while the diamonds appear to sparkle lightly between the pipes. It is a design that embodies januka’s distinctive approach to jewelry: minimal in form, yet defined by an unconventional structure.
FAQ
Q. Is there a risk of the diamonds coming loose?
A.The diamonds are securely set and will not come loose easily during normal wear.
CON uses an original setting structure developed by januka, precisely designed so that each diamond fits securely between two gold pipes. Rather than relying on adhesive, our craftspeople adjust and shape the metal with millimeter-level precision to accommodate each individual diamond.
In the unlikely event that a diamond does come loose due to a strong impact or other accidental damage, we also offer repair and resetting services.
Q. Can I purchase from outside Japan?
A.Yes. We offer international shipping via DHL.
International orders are subject to a shipping fee of ¥7,000 in addition to the product price. Any customs duties, import taxes, or other fees imposed by the destination country are the responsibility of the customer.
If you have any questions or concerns about ordering from overseas, please feel free to contact us. We will be happy to assist you.
Q. Can I see and try on the pieces in person before purchasing?
A.Yes. You can view and try on the CON series at our flagship store in Minami-Aoyama, Tokyo.
As the CON series is available with different diamond sizes, we recommend trying the pieces on in person to compare their scale, presence, and how they look against your skin.
Q. How should I care for my jewelry and clean between the settings?
A.For everyday care, gently wipe away perspiration and natural skin oils with a soft cloth after wearing your jewelry.
If the diamonds begin to appear dull due to a buildup of skin oils or other residue, you can clean your jewelry at home to restore their natural brilliance.
At-Home Care
Add a small amount of mild detergent, such as dishwashing liquid, to lukewarm water and mix gently.
Using a soft-bristled toothbrush, gently clean around the diamonds, including the back of the stones and the spaces between the settings.
Rinse thoroughly with clean water to remove all detergent, then gently dry the piece with a soft cloth.
Q. Can scratches or deformation of the metal be repaired?
A.Yes. We offer both maintenance and repair services.
Our craftspeople can polish out minor scratches, correct deformation, and provide other appropriate maintenance depending on the condition of your jewelry.
Please feel free to bring your piece to our flagship store or send it to us for assessment and repair.
Q. Can a CON ring be resized after purchase?
A.Yes. CON rings can be resized after purchase.
However, because the pipes and diamonds are precisely fitted together as part of the setting structure, a significant increase or decrease in ring size may affect the diamond settings.
If you would like to have your ring resized, we recommend contacting us in advance through our official LINE account or the contact form on our website, including your current and desired ring sizes. We will confirm what adjustments are possible for your particular ring.