Asteria Black Diamond Ring
A question about this ring?
Our team is delighted to answer all your questions about this ring.
Reply within 30 min on average, 7 am to 7 pm (Paris time), every day.We reply today from 7 am (Paris time).We reply tomorrow from 7 am (Paris time).We reply on Monday from 7 am (Paris time).
Read the frequently asked questions
Free Secure Shipping
Free Exchanges 30DWould you like a one-of-a-kind expression of Astéria?
Another stone, rose or white gold, an engraving, a family stone: our team designs your ring with you. 3D render before making.
Create my bespoke ringDetails & Specifications
Ethical Craftsmanship
Every Mayuri creation is crafted with intention, made in small batches or to order, to honor its purpose.
Our commitment: to prioritize recycled gold and silver, with a target of 80% recycled metals, and to work exclusively with certified suppliers who share our standards of traceability and ethics. Every stone is guaranteed conflict-free, because the way a piece of jewelry is created matters as much as its beauty.
Shipping & Returns
- Secure tracked shipping with signature required on all orders
- Free shipping in metropolitan France
- Free shipping across Europe from €200
- Free worldwide shipping from €500
- In-stock pieces: dispatched within 24 hours (same day if ordered before 7 a.m., Monday to Friday)
- Made-to-order pieces: production lead time indicated on the product page
- Express delivery available (select at checkout)
- Returns accepted within 30 days for unworn items in their original condition. View conditions
- For any assistance, contact our team
Choose options
Engagement ring with a princess-cut black diamond in a milgrain bezel, set in a scatter of diamonds that fades towards the band. The chosen star, at the heart of its constellation.
- Secure payment
- Secure delivery
- 30-day returns
Ethical Sourcing & Kimberley Certified
AAA Quality Gemstones
Parisian Jewelry House
Lifetime Support
30-Day Returns
Astéria
The starry one, at the heart of a dust of stars.
More than a jewel.
A presentation box engraved with the Mayuri monogram, included with every order.
A signature case, chosen to reveal the piece.
A soft care cloth, included with every piece to preserve its brilliance.
Frequently Asked Questions
The questions we are asked most often about : materials, care, symbolism and styling advice.
How do I choose the right ring size?
Find your size with our printable ring sizer.
If you are gifting a ring without knowing the exact size, size 6 is the most common choice. Feel free to contact us for any specific size request.
Can I choose a larger or smaller black diamond?
Yes. Every Asteria ring is made to order: the centre stone can be larger or smaller, and the setting is redrawn to its proportions. Tell us the size or budget you have in mind and we will send you a quote.
Can I change the diamonds around the stone?
Yes. The diamonds can be replaced with coloured stones, or reduced in number for a quieter line. Tell us what you have in mind and we will show you the result before it is made.
Can I have my ring engraved?
Yes, engraving inside the band is complimentary: initials, a date or a word. Add your text in the order notes.
Gold or platinum?
Our solid gold comes in yellow, white or rose. Platinum is denser and naturally white: it never needs replating. Both are made to be worn every day.
Is delivery insured?
Yes. Every order ships securely with tracking and insurance, so your piece is protected from the moment it leaves our workshop until it reaches you.
Is the packaging discreet?
Yes, our shipping parcels are discreet and mention neither Mayuri nor their contents. Inside, your piece arrives in our signature packaging, ready to give or to keep.