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[City] Reshine ball ring labgrowndiamond
"Individuality that shines in the gaps of "perfect.""
¥48,400 (tax incl.)
A perfectly round ball born from the urban mine, and the sparkle of a lab-grown diamond.
Within its modern design, a delicate 0.02ct diamond quietly hides.
Small as it is, its sparkle carries a confident presence.
The round element is made of metal from the urban mine.
Its weight and form are adjusted to the millimeter,
considering not only how it looks but how it feels against the finger.
A minimal design in which seasoned craftsmanship lives.
“City Collection”
Don't hide behind shade of buildings.
What shines between the "perfect" is a spoonful of individuality.
[Made to Order]
ANNA DIAMOND makes each piece to order, producing only what is needed.
Please allow about two and a half months from your order to delivery.
Sizes are Japanese ring sizes. If in doubt, we recommend your exact size or half a size up. Ring sizer rental →
Free ring sizer rental
Not sure of your ring size? We lend ring sizers free of charge (within Japan only).
Apply here →
| JP Size | Circumference (mm) | Diameter (mm) | US Size |
|---|---|---|---|
| 5 | 45.2 | 14.4 | 3 |
| 7 | 47.1 | 15.0 | 4 |
| 9 | 49.0 | 15.6 | 5 |
| 11 | 51.0 | 16.2 | 6 |
| 13 | 52.9 | 16.8 | 7 |
| 15 | 54.8 | 17.4 | 7.5 |
City Collection
Uncompromising Quality
Handcrafted by skilled Japanese artisans
Every ANNA DIAMOND piece is finished by hand, one by one, by skilled artisans in our workshops in Japan.
Delicate lines designed in Paris, brought to life by exceptional Japanese craftsmanship. This uncompromising approach creates quality you feel the moment you put it on.
Every ANNA DIAMOND piece comes with warranties and care,
so you can enjoy it for many years.
- Applies to all items except full order and custom order pieces, with a unit price of ¥400,000 (tax incl.) or less
- For multiple items, the total refundable amount is up to ¥400,000 (tax incl.)
- After inspection at our workshop, a cleaning fee may be deducted from the refund
- Engraved items may not be eligible for return
Our promises for jewelry that is beautiful,
ethically as well as visually.
The moment your jewelry arrives should feel special too,
so we take care in how every order is packaged.


The jewelry box is a book.
The story begins the moment it opens.
Delivery
- Estimated delivery
- See the Delivery section above the cart button on each product page
- Shipping
- Free worldwide shipping, with tracking and insurance
Returns & Exchanges
Returns accepted within 7 days
- Applies to all items except full order and custom order pieces, with a unit price of ¥400,000 (tax incl.) or less
- For multiple items, the total refundable amount is up to ¥400,000 (tax incl.)
- After inspection at our workshop, a cleaning fee may be deducted from the refund
- Engraved items may not be eligible for return
FAQ
Frequently Asked Questions
K18 is 75% pure gold, K10 about 42%. K18 offers a deeper color and greater durability, while K10 comes at a more accessible price.
→ See our materials guide
Every piece comes with a 2 year warranty from the date of purchase. Issues arising from normal wear are repaired free of charge.
→ See our after care services
Daikanyama store offers sizing in person. Free ring sizer rental is also available (within Japan only).
→ Request a ring sizer
Every piece arrives in our book inspired original package. A gift bag can be included on request.
Estimated delivery is shown in the Delivery section above the cart button on each product page. If you are in a hurry, please reach us via the contact form.
Returns are accepted within 7 days of delivery (excluding full order and custom order pieces, for items priced ¥400,000 tax incl. or less; engraved items may not be eligible). If the size does not fit, we offer one free resizing within 1 year of purchase.
Platinum 950 and K18 gold rarely cause metal allergies. If you have concerns, feel free to contact us.



















