Galaxy Ring
TUNGSTEN / PRECIOUS OPAL
- Regular price
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€178,92 - Regular price
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- Sale price
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€178,92
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Beveled black tungsten carbide. At its center, a precious opal, hand-set.
Opal is a fire stone: its color comes from the diffraction of light on silica microspheres arranged in a network. No two opals play exactly the same.
The beveled tungsten protects it. Opal is sensitive to shocks and unforgiving of neglect.
A stone that changes color depending on the angle. The material does the work for you.
Specifications
| Ring Material | Tungsten carbide, matte black finish, polished beveled edges |
| Inlay | Precious opal, hand-set |
| Width | 8 mm |
| Profile | Flat with beveled edges |
| Weight | ~14 g (size 10) |
| Signature | MAISON KARDINAL engraved inside |
| Case | Matte black cardboard, velvet interior |
Care
Tungsten does not tarnish. Opal is a fragile stone that is sensitive to shocks and temperature changes. Remove the ring for sports, DIY, and swimming. Wipe gently only.
Description
Tungstène carbure noir biseauté. Au centre, une opale précieuse, sertie à la main.
L'opale est une pierre de feu : sa couleur naît de la diffraction de la lumière sur des microsphères de silice arrangées en réseau. Aucune opale ne joue exactement comme une autre.
Le tungstène biseauté la protège. L'opale craint les chocs et ne pardonne pas les négligences.
Une pierre qui change de couleur selon l'angle. La matière fait le geste à votre place.
Entretien
Le tungstène ne ternit pas. L'opale est une pierre fragile qui craint les chocs et les écarts de température. Retirez la bague pour le sport, le bricolage et la baignade. Essuyage doux uniquement.
Lifetime warranty
Every Maison Kardinal piece comes with a lifetime guarantee on its structure: tungsten, steel, and inlay setting. If the material fails, we replace it.
The guarantee does not cover intentional scratches, loss, or damage from extreme use. Tungsten is scratch-resistant in everyday use: it can crack under very strong mechanical pressure (dropping on concrete, heavy impact). In this case, we also replace it.
You wear the piece for twenty, thirty, fifty years. It remains functional. This is our commitment, and it is engraved in the MAISON KARDINAL signature engraved on each ring.
What is covered
The structure of the ring, against manufacturing defects.
Detachment of an inlay (meteorite, wood, opal, gold flakes) if the cause is a manufacturing defect and not an impact.
Abnormal tarnishing of a material guaranteed to be unalterable (tungsten, 18k gold).
Breakage of the hand-setting on Aurore and Galaxie pieces.
The interior engraving of the engraved MAISON KARDINAL signature, for life.
What is not covered
Intentional breakage or major impacts (crushing, violent impact against a hard metal object). Tungsten is very hard but brittle: a violent impact can break it cleanly.
Loss or theft of the piece.
Size modification. Tungsten cannot be re-sized (the material is too hard to be recut). In case of incorrect size, we offer a free exchange within thirty days of delivery.
Normal wear and tear of wood (Bourbon) or opal (Galaxie) if the piece is exposed to prolonged immersion, chemicals, or thermal shock.
How to activate the warranty
Step 1. Find the engraved MAISON KARDINAL signature inside your piece, or indicated on the provenance booklet received at the time of purchase.
Step 2. Send an email to contact@maisonkardinal.com with your engraved MAISON KARDINAL signature, two photos of the piece (overview and view of the defect), and a description of the problem.
Step 3. We will respond within 48 hours with return instructions.
Step 4. After receipt and expert assessment, we will replace the piece identically or repair it as possible. The interior engraving will be transferred to the new piece.
Lead time: between two and five weeks depending on the piece and material availability.
Fees
Warranty service is free of charge. Return shipping costs are your responsibility unless there is an error on our part.
Legal warranty
The Maison Kardinal commercial warranty is in addition to the legal conformity warranty (two years in France) provided by the consumer code, and the warranty against hidden defects of the civil code. You retain all your rights.
Delivery & Returns
Delivery included in metropolitan France, Belgium, Luxembourg and Switzerland. 5 working days delivery time with Colissimo tracking.
Returns within 30 days, no questions asked. If the item doesn't fit, whether it's the size, material, or feel, you can return it. Return shipping costs are covered. Refunds are processed within 5 days of receipt.
Delivery details · Return policy
SHIPPING INFORMATION
DELIVERY TIMES
All our orders are carefully prepared and shipped within 24 to 48 hours (business days). Delivery time within metropolitan France is 10 to 15 business days.
TRACKING
A tracking number is sent to you by email as soon as your order is shipped. You can track your package in real-time.
RATES
- Metropolitan France: €4.90
- FREE for purchases over €99
- Belgium, Luxembourg, Switzerland: €6.90
- Rest of Europe: €8.90
FREE SHIPPING
Shipping is automatically free for any order over €99. No promo code necessary.
Origin and signature
Each piece bears the MAISON KARDINAL signature engraved inside, in the logo's typography. This excludes pieces made from materials that cannot be engraved: the Damas Ring (forged steel) and the Carbon Ring (carbon fiber), for technical reasons.
The rings are made to order in our partner workshops specializing in tungsten carbide and Damascus steel. Each piece undergoes a quality control check before shipping from our warehouse.
Raw materials (tungsten, 316L steel, Gibeon meteorite, bourbon barrel wood, carbon fiber, opal) are sourced from certified suppliers.






Size Correspondence Chart
All our rings are available in US sizes (international standard). Find below the equivalences with French and UK sizes.
| US Size | FR Size | UK Size | Diameter (mm) | Circumference (mm) |
|---|---|---|---|---|
| 6 | 51-52 | L-M | 16.5 | 51.8 |
| 7 | 54-55 | N-O | 17.3 | 54.4 |
| 8 | 57-58 | P-Q | 18.1 | 57.0 |
| 9 popular | 60-61 | R-S | 19.0 | 59.5 |
| 10 popular | 62-63 | T-U | 19.8 | 62.1 |
| 11 popular | 64-65 | V-W | 20.6 | 64.6 |
| 12 | 66-67 | X-Y | 21.4 | 67.2 |
| 13 | 69-70 | Z+1 | 22.2 | 69.7 |
Find Your Size
Method 1, With an existing ring
The most reliable method if you already own a ring that fits you well.
Method 2, With a string or strip of paper
Ideal if you don't have a reference ring.
Important Tips
Matériaux et finitions
| Matériau anneau | Tungstène carbure, finition noire mate, bords biseautés polis |
| Incrustation | Opale précieuse, sertissage à la main |
| Largeur | 8 mm |
| Profil | Plat à arêtes biseautées |
| Poids | ~14 g (taille 10) |
| Signature | MAISON KARDINAL gravé à l'intérieur |
| Écrin | Carton mat noir, intérieur velours |

A living stone
The color of opal is born from the diffraction of light on microspheres of silica arranged in a lattice.
No two opals play exactly alike. The one in this ring is yours alone.

The material performs the gesture for you
The stone changes color depending on the angle. Blue, green, sometimes orange.
You don't decide the game. You welcome it.