Certificat d'authenticité
We certify that this ISIS&GOLD jewel is 18K solid gold (750‰) and made in France.
Nous certifions que ce bijou ISIS&GOLD est en or massif 18 carats (750‰) et fabriqué en France.
Made in France · Fabriqué en France
750 thousandths of pure gold, the reference alloy of French fine jewelry. No plating, no vermeil.
Every piece is cast, polished and checked in our Nice workshop before shipping.
Your reference and order number are in our records. We can confirm the origin of every jewel.
Every ISIS&GOLD gold jewel is cast, polished and checked in our Nice workshop. Nothing is bought ready-made.
We start from 750 thousandths gold: 75% pure gold, alloyed with silver and copper. It is the reference standard of French fine jewelry.
Each piece is cast one by one in our Nice workshop, from our own models.
The mirror finish is done by hand. It is what gives the jewel its light once it sits on the enamel.
Weight, dimensions, surface condition: every jewel is inspected before being packed with its certification card.
Gold does not oxidise
Gold does not oxidise. That is chemistry, not marketing: pure gold reacts neither with air, nor water, nor saliva. A jewel in 18K solid gold cannot rust, and cannot tarnish from within. Whenever the look changes, the cause is on the surface — and it can be undone.
« My jewel looks dull, as if veiled »
A deposit has settled on the surface: dental plaque, tartar, toothpaste residue. The gold underneath is untouched — it is the deposited layer that no longer reflects the light.
A scaling, or a gentle clean at your technician's, is enough to bring the shine back.
« My jewel has darkened »
Gold itself does not darken. What takes on colour is what clings to the surface — coffee, tea, red wine, tobacco — or, more rarely, the 25% of alloy (silver, copper) in contact with sulphur or chlorine: swimming pools, whitening products, some mouthwashes.
It stays on the surface. Re-polishing gives the jewel back its original look.
« It is the rim around the jewel that has yellowed »
That is not the jewel: it is the composite holding it. This dental resin is porous and absorbs pigments over time, exactly like a filling does. By far the most frequent case.
The composite is renewable. Your technician removes it and re-bonds the jewel — the gold itself is reused as it is.
« The shade looks different to me »
The shade of 750‰ gold comes from its proportion of silver and copper, and it is always read against the tooth next to it. Teeth whitening, a different light, another phone camera: the jewel has not changed, its surroundings have.
Compare in daylight, on the same tooth. If a doubt remains, write to us.
Gold is the oldest metal in dentistry, and that is no accident.
Inlays, crowns, bridges: gold has been used in the mouth since the late 19th century, precisely because it does not corrode in contact with saliva.
The 750‰ alloy combines gold, silver and copper. It contains no nickel, the metal most often behind contact allergies. Allergy to gold itself is exceptional.
The jewel is bonded onto the enamel, like a tooth gem. No preparation of the tooth, no drilling. Removal must be done by a health professional.
750 thousandths, i.e. 75% pure gold in the alloy: that is the definition of 18-karat gold. The remaining 25% (silver, copper) give the jewel its colour and its durability.
No. Oxidising means reacting with oxygen, and gold does not. That is what separates it from silver, which blackens, or from gold-plated brass, which corrodes under its plating. What is taken for oxidation is a surface deposit, or a colouring of the composite around the jewel.
Your usual brushing, with a soft brush. Avoid highly abrasive toothpastes and prolonged use of chlorine mouthwashes. Beyond that, normal dental hygiene is enough.
Every gold jewel ships with its certification card: date of purchase, reference, order number and tooth gem technician. The QR code on the card leads to this page.
Yes, by a health professional or by your tooth gem technician. The enamel is neither prepared nor drilled: the fitting is reversible.
Hearts, letters, zodiac signs, custom pieces: the whole collection is made in Nice in solid gold.
See the collectionA question about your jewel? Write to us
