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Quick Delivery [City] Reshine ball ring labgrowndiamond
¥48,400 (tax incl.)
“City Collection”
Don't hide behind shade of buildings.
Between the cracks of “perfection” shines a spoonful of individuality.
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A perfectly round ball born from urban mining, and the brilliance of a lab-grown diamond.
Within the modern design, a delicate 0.02ct diamond quietly hides.
Small as it is, its sparkle carries a confident presence.
The round component is made from urban-mined metal.
Its weight and form are adjusted to the millimeter,
with care given not only to visual beauty but to how it feels against the finger.
A piece where seasoned craftsmanship lives within minimal design.
【Our Philosophy】
”A piece for life should be an honest one.”
With this belief, we use urban-mined material (SV925) for the metal in this collection. It is said that more metal resources are already in circulation in society than remain buried in the earth. We created this piece with a focus on those existing resources.
The urban-mined metals we use are reborn through a refining process much like that of newly mined metal, so their durability is essentially the same as that of newly mined metal.
It is not a question of whether urban-mined or newly mined resources are the right answer. Our mission is to convey the value and the challenges of each honestly, and to offer honest choices our customers can truly believe in. Informed by the latest knowledge from our base in Europe, we shape each answer into something you can trust. This is how we approach jewelry meant to be with you for a lifetime.
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.



















