To preserve their brilliance, special care must be given to each type of gemstone based on their mineral properties.
We recommend that you bring in your fine jewelry every year to a CHANEL boutique. It will be carefully taken care of by our expert jewelers.
Advice for each type of stone or precious material is further detailed in below.
PRECIOUS METALS

Gold
To avoid scratches, keep your gold jewelry from rubbing against other set pieces of jewelry. Polishing and rhodium plating can restore white gold to a like-new condition, removing any signs of wear and tear. Do not hesitate to come into a CHANEL boutique to request these services. Clean your gold jewelry with warm water and a soft brush before drying it with a soft cloth.

Platinum
To avoid scratches, keep your platinum jewelry from rubbing against other set pieces of jewelry. Clean your platinum jewelry with warm water and a soft brush before drying it with a soft cloth.
CERAMIC

As a non-oxidizing material, ceramic is hard to scratch. However, deposits of materials giving the appearance of scratches can form upon contact with other pieces softer than ceramic, such as gold or titanium. A simple cleaning in our workshops can remove these marks. Clean your ceramic jewelry with warm water and a soft brush before drying it with a soft cloth.
PEARLS

Pearl is an organic material which needs to be worn regularly and is very sensitive to chemical substances. In order to preserve its brilliance, avoid putting it in contact with cosmetics that could alter the shine (perfumes, creams, etc.). Store your pearl jewelry in its original case, away from other pieces of jewelry and covered with a soft cloth in a humid place.
To humidify the air, you can also put a small glass of water close to your piece of jewelry.
Clean with a damp soft cloth.
PRECIOUS STONES

DIAMOND
A diamond can only be scratched by another diamond, but it can easily scratch every other metal or stone with which it comes into contact. In order to avoid scratching, it is recommended not to wear multiple pieces of jewelry on the same finger or wrist. Despite its hardness, the diamond remains a delicate stone, likely to break in the event of a strong impact.
Clean your diamond with warm water and a soft brush before drying it with a soft cloth.

EMERALD
Since it is particularly sensitive to temperature changes, avoid exposing your emerald to thermal shocks or extreme heat sources.
Emerald is a delicate stone. It requires particular care, only available through our expert jewelers. We therefore recommend that you visit a CHANEL boutique for any maintenance of your emerald-set jewelry.

RUBY
Clean your ruby with warm water and a soft brush before drying it with a soft cloth.

SAPPHIRE
Clean your sapphire with warm water and a soft brush before drying it with a soft cloth.
SEMI-PRECIOUS STONES

Agate
Agate is sensitive to thermal changes, cosmetics (creams, perfumes, etc.), detergents and cigarette smoke. By penetrating the stone, these products may change its color.
Clean your agate with warm water and a soft brush before drying it with a soft cloth.

Aquamarine
Particularly sensitive to temperature changes, avoid exposing aquamarine to thermal shocks or extreme heat sources.
Clean your aquamarine with warm water and a soft brush before drying it with a soft cloth.

Amethyst
Since it is particularly sensitive to temperature changes, avoid exposing amethyst to thermal shocks or extreme heat sources.
Clean your amethyst with warm water and a soft brush before drying it with a soft cloth.

Chalcedony
Sensitive to light, chalcedony’s color can fade. In order to preserve the color of your stone, avoid exposing it to extreme light sources.
Clean your chalcedony with warm water and a soft brush before drying it with a soft cloth.

Citrine
Despite its sturdiness, citrine is sensitive to intense heat and acidity. Avoid contact with acidic products as well as prolonged exposures to high temperatures.
Clean your citrine with warm water and a soft brush before drying it with a soft cloth.

Iolite
Clean your iolite with warm water and a soft brush before drying it with a soft cloth.

Onyx
Onyx is sensitive to thermal changes, cosmetics (creams, perfumes, etc.), detergents and cigarette smoke. By penetrating the stone, these products may change its color.
Clean your onyx with warm water and a soft brush before drying it with a soft cloth.

Opal
Opal must not suffer any intense thermal shock nor be exposed to dry heat, which would risk dehydrating it. Contact with chemical products may also dry it out and alter its iridescence. Over the course of its life, an opal’s weight can vary due to water loss. This is a naturally occurring phenomenon.
Clean your opal with a soft cloth.

Peridot
Peridot is a stone sensitive to thermal shocks. Avoid exposing your piece of jewelry to violent temperature changes or extreme climates, as this might damage it.
Clean your peridot with warm water and a soft brush before drying it with a soft cloth.

Quartz
Clean your quartz with warm water and a soft brush before drying it with a soft cloth.

Spinel
Clean your spinel with warm water and a soft brush before drying it with a soft cloth.

Tanzanite
Tanzanite is a delicate stone sensitive to shocks, scratches and violent temperature changes.
Clean your tanzanite with warm water and a soft brush before drying it with a soft cloth.

Topaz
Like diamonds, topaz is a very hard stone but it is likely to crack from a violent impact. Keep your topaz away from chemical products and from light which may alter its color.
Clean your topaz with warm water and a soft brush before drying it with a soft cloth.

Tourmaline
Clean your tourmaline with warm water and a soft brush before drying it with a soft cloth.

LAPIS
Lapis is a delicate stone sensitive to temperature changes. Clean lapis with warm water and a soft brush before drying it with a soft cloth.

MOTHER-OF-PEARL
Mother-of-pearl must not be subjected to intense thermal shocks. Exposing it to cosmetics, such as creams and perfumes, and chemicals, such as detergents and cigarette smoke, may alter its colour and iridescence. Clean mother-of-pearl with a soft cloth.

MALACHITE
Malachite is a delicate stone sensitive to temperature changes. Avoid contact with acidic products. Clean malachite with a soft cloth.