Gold is robust but soft compared to other metals. It can develop small scratches or a natural patina over time - especially on polished or very finely crafted surfaces. Matt finishes change due to friction, polished surfaces become duller.

This is all part of the character of a worn piece.
The good thing is that gold can be refreshed at any time. Whether polished, re-matted or repaired in individual areas - every piece can be restored to its original shine (or its desired irregularity) in the studio.

Diamonds are extremely hard, but they attract grease and oils. Creams, skin care products, make-up or perfume can be deposited on their surface and reduce the shine. Even a high-quality cut then appears dull.

Therefore: Ideally, diamond jewellery should be put on after styling and taken off again when removing make-up. Regular, gentle cleaning with a lint-free cloth brings back the original shine - without any aggressive agents or immersion baths.

Coloured gemstones react differently to heat, shocks and chemicals:

• Emeralds contain fine natural cracks ("jardin") and should not come into contact with heat or harsh cleaning agents.
• Topaz, tanzanite, tourmaline and similar stones are sensitive to impact - it is better to take them off when doing sports, carrying heavy bags or gardening.
• Opals contain a high proportion of water, which is responsible for their vibrant play of colours. They must not be allowed to dry out - direct sunlight, heated air and very dry environments should be avoided. They are best stored softly bedded, possibly with a small piece of moistened absorbent cotton nearby - not airtight, but kept slightly moist.

Pearls are sensitive by nature - they like skin contact, but not acids, perfume or alcohol. It is best to put them on at the end and take them off again first. They should not be stored in closed, airtight containers - a little moisture keeps them supple and radiant.