Play video

The Seal

POLISHED TUNGSTEN CARBIDE

Regular price: €164,30
Regular price
Sale price: €164,30

Size 7 8 10 11 12 13

Help about your size

Polished Tungsten Carbide Black mirror surface, scratch-resistant.

Signet Ring Shape Massive flat face, understated presence.

Engraved Signature MAISON KARDINAL inside, in the logo's typography.

Lifetime Warranty On material and manufacturing.

Tungsten carbide signet ring, polished black finish. Flat rectangular face, cold setting.

The signet ring is for families, coats of arms, vows. Here it is black, smooth, without inscription.

What it represents, only you know.

Specifications

Ring Material	Tungsten carbide, black mirror polished finish
Face	Flat rectangular 14×10 mm
Ring Width	6 mm
Profile	Comfort fit interior
Weight	~16 g (size 10)
Signature	MAISON KARDINAL engraved inside
Case	Black matte cardboard, velvet interior

Care

Polished tungsten maintains its shine without maintenance. A gentle wipe with a microfiber cloth after use is sufficient. The flat face can accommodate additional side engraving if desired.

Description

Chevalière en tungstène carbure, finition polie noire. Face plate rectangulaire, sertissage à froid.

La chevalière est la pièce des familles, des armoiries, des serments. Ici elle est noire, lisse, sans inscription.

Ce qu'elle représente, vous seul le savez.

Entretien

Le tungstène poli garde son éclat sans entretien. Un essuyage doux au chiffon microfibre après usage suffit. La face plate peut accueillir une gravure latérale supplémentaire si vous le souhaitez.

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.

See full warranty details

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.

Our Story · Our Materials

Ring Size Guide

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

I measure in

Value

Method 1, With an existing ring

The most reliable method if you already own a ring that fits you well.

1

Choose a well-fitting ring

Select a ring that you wear comfortably on the desired finger. Make sure it is not too tight and does not spin.

2

Measure the inner diameter

Place the ring flat on a ruler and measure the inner diameter in millimeters (from one inner edge to the other).

3

Consult the chart

Transfer the measurement to the chart above or use the converter. If you are between two sizes, choose the larger size.

Method 2, With a string or strip of paper

Ideal if you don't have a reference ring.

1

Wrap the string around your finger

Take a string or a thin strip of paper. Wrap it around the base of the desired finger, passing over the knuckle.

2

Mark the crossing point

With a pen, mark the exact spot where the string crosses. The string should be snug but not tight; it should be able to slide over the knuckle.

3

Measure the length

Unroll the string and measure the length between the two marks in millimeters. This is your circumference. Enter it into the converter above.

Important Tips

Measure at the right time

Your finger size changes throughout the day. Measure at the end of the day, when your fingers are at their largest. Avoid measuring when you are cold (shrunken fingers) or after physical exertion (swollen fingers).

Our rings are comfort fit

All Maison Kardinal rings are comfort fit (rounded interior). They slide on more easily than standard flat-interior rings. If you are used to classic rings, your comfort fit size may be the same or half a size smaller.

Between two sizes?

Always choose the larger size. A slightly larger ring will be comfortable, while a ring that is too tight will be impossible to wear. Our tungsten rings cannot be resized, so choosing the correct size is essential.

Tungsten cannot be resized

Unlike gold or silver, tungsten is an extremely hard metal that cannot be enlarged or reduced. In case of an incorrect size, we offer a free exchange within 30 days.

Matériaux et finitions

Matériau anneau	Tungstène carbure, finition noire polie miroir
Face	Plate rectangulaire 14×10 mm
Largeur de l'anneau	6 mm
Profil	Confort intérieur
Poids	~16 g (taille 10)
Signature	MAISON KARDINAL gravé à l'intérieur
Écrin	Carton mat noir, intérieur velours

A shape with fifteen centuries

The signet ring marked the wax, signed a letter, identified a man.

Here it is black, smooth, with no inscription. Mirror-polished tungsten carbide. The shape is fifteen centuries old, the material is less than a year old.

What she represents

You alone know this.

The flat side can accommodate an additional side engraving if you wish. Please let us know when ordering.

THE PERFECT GIFT

MEET OUR NEW BAE!

Ingrédients biologiques?