Expensive jewellery is not maintenance-free jewellery. The more refined the setting, the more important inspection and informed care become.

A client may spend months choosing a diamond, a gemstone or a bespoke design, yet the future of the jewel is decided by small habits that begin the day it is delivered. In my experience, important jewellery is rarely damaged by one dramatic mistake. More often, wear accumulates quietly: a claw becomes thinner, a chain rubs against another chain, a pearl meets perfume every morning, or an emerald is placed in an ultrasonic cleaner because the machine is described as professional.

At VITALE 1913, I prefer to explain care at the moment of purchase, not after a problem appears. A fine jewel is made to be worn. It should not remain permanently hidden in a safe. But freedom to wear it comes from understanding its materials, its setting and its limits. The same routine is not suitable for a diamond solitaire, an oiled emerald, a coral necklace, a cultured pearl strand or an Art Deco brooch with several techniques and decades of history.

This guide presents the practical principles I teach clients and students in Monaco. It is designed for owners of fine jewellery on the French Riviera and in Italy, where sea water, swimming pools, cosmetics, travel and an active social life create particular risks. The central idea is simple: protection is not the opposite of enjoyment. Correct care allows a jewel to remain beautiful, structurally secure and emotionally alive for generations.

Begin with materials, not with a cleaning product

The first question should never be, "Which cleaner should I buy?" It should be, "What exactly is this jewel made of, and has any material been treated?" A diamond is extremely hard, but hardness means resistance to scratching, not immunity from chipping. A sharp blow in the wrong direction can damage a girdle or point. Gold is durable but can scratch, bend and gradually wear at the claws that hold a stone. Platinum develops a patina and can also deform under force. White gold may need renewed rhodium plating as the surface colour changes with wear.

Coloured gemstones require even more discrimination. Ruby and sapphire are generally suitable for frequent wear when sound and properly set, but they may still be fractured, filled or treated. Emerald commonly contains surface-reaching fissures that are improved with oil or resin. Heat, solvents, steam and ultrasonic vibration can affect those fillers. Pearls and coral are organic gem materials: they are softer, more porous and vulnerable to acids, cosmetics and abrasion. Opal, turquoise, tanzanite and several other gems can be sensitive to heat, impact, chemicals or sudden temperature change.

A laboratory report, VITALE certificate, invoice or previous expertise may record useful information about identity and detectable treatments. Keep that documentation. It is not administrative decoration; it can determine whether a cleaning or repair method is safe. When the treatment history is unknown, the correct professional approach is caution.

A practical material-by-material care guide

Material or setting	Main vulnerabilities	Safer owner routine
Diamond jewellery	Chipping at exposed edges; loose claws; grease and cosmetic film	Warm water, mild soap and a very soft brush when the setting is sound; periodic professional inspection
Ruby and sapphire	Impact; hidden fractures or treatments; abrasion between jewels	Separate storage; gentle cleaning only after treatment and setting are understood
Emerald	Fissure fillers may be affected by heat, solvent, steam or ultrasonic vibration	Use a soft damp cloth or professional cleaning; avoid ultrasonic and steam unless specifically approved
Pearl	Scratching, acids, perfume, hairspray, dehydrating heat, stretched stringing	Last on, first off; wipe after wear; store separately; dry flat after careful cleaning; restring when required
Coral	Scratching, cosmetics, acids, heat, ultrasonic cleaning	Wipe gently after wear; keep away from perfume and chemicals; use a separate soft pouch
Opal	Impact, heat and sudden temperature change; assembled opals may be damaged by soaking	Avoid hot cars, prolonged water and harsh cleaning; request advice for doublets or triplets
Turquoise	Porosity, oils, cosmetics and colour alteration	Do not soak; wipe gently; keep away from perfume, sunscreen and household products
Tanzanite	Cleavage, impact and thermal shock	Avoid ultrasonic and steam; remove for sports and manual work; store separately
Pavé or micro-set jewellery	Small beads and stones can loosen through shock, wear or distortion	Inspect regularly; never ignore a snagging surface or missing sparkle; avoid home machinery

The daily rule: last on, first off

The most useful care routine is also the simplest. Jewellery should be the last element added after perfume, make-up, hairspray, creams and sunscreen, and the first element removed at the end of the day. This is especially important for pearls, coral, turquoise and other materials that can absorb or react with products. Even diamonds lose apparent brilliance when covered by skin oils and cosmetics.

Apply fragrance before wearing jewellery and allow it to dry. After an evening, wipe metal and suitable stones with a clean, soft, lint-free cloth before returning them to storage. Do not use a cloth that has previously held polishing compound. Commercial silver or metal polishes can be too aggressive for plated surfaces, blackened finishes, pearls, coral or nearby gemstones.

Clients sometimes ask whether they should sleep in their jewellery. A robust wedding band may tolerate ordinary sleep, but delicate chains, long earrings, high-set rings, pavé and antique pieces can catch, twist or receive repeated pressure. The safest general rule is to remove fine jewellery before sleeping unless the piece was specifically designed and assessed for continuous wear.

When jewellery should come off

A luxury lifestyle can be active, particularly in Monaco and along the Côte d'Azur. Yachting, swimming, fitness and travel are part of life, but they are not neutral environments for jewellery. Remove fine pieces before sport, gardening, heavy lifting, household cleaning, showering, swimming, spa treatments and any work involving tools or chemicals.

Chlorinated water, household bleach and cleaning agents can affect metals, treatments and surface finishes. Salt water leaves deposits and creates an obvious loss risk: cold water can make fingers contract, while movement in the sea can release a ring or bracelet without the wearer noticing. On a yacht or at the beach, never wrap a jewel in a towel or place it loosely in a pocket. Use one discreet, closed travel case in a predetermined secure location.

A ring can also be damaged without the gemstone touching anything. A strong grip on a suitcase handle, gym equipment or a steering wheel can distort a delicate shank. Once the circle changes shape, pressure is transferred to the setting and small stones may loosen. Jewellery should be removed before the activity, not after the first impact.

Home cleaning: simple, selective and never improvised

For an untreated diamond in a sound setting, warm water, a small amount of mild dish soap and a very soft brush can be effective. Work over a bowl or secure surface. GIA advises rinsing in a glass rather than directly over an open sink, where a loose stone or entire jewel can be lost. Dry with a soft lint-free cloth and inspect the piece before wearing it again.

The word ultrasonic creates false confidence. Ultrasound is a tool, not a universal solution. GIA specifically warns against ultrasonic cleaning for fracture-filled gems, organic materials such as pearl and coral, coated gems, several heat-sensitive stones and jewels in which vibration could loosen or chip stones. Steam also introduces heat and pressure. A professional first identifies the materials, detectable treatments and structural condition, then chooses the method.

Avoid toothpaste, baking soda, hard brushes, chlorine, acetone, ammonia mixtures and social-media cleaning experiments. Abrasive products can scratch metal and softer gems. Chemicals may attack fillers, coatings, adhesives or patinas. Boiling water is particularly dangerous because thermal shock and hidden treatments are not visible to the owner.

If the jewel is inherited, antique, assembled from several materials or lacking documentation, do not make the first cleaning decision at home. Bring it for examination. Dirt can hide a loose setting, and aggressive cleaning may remove historic patina or alter evidence useful for identification and restoration.

When you do not know the treatment history, the safest cleaning method is professional examination before intervention.

Storage is part of the design life of a jewel

Many scratches happen when jewellery is not being worn. Diamonds can scratch other gemstones and may scratch one another. Chains knot, earrings rub against pearls, and hard metal edges abrade coral. A single large box filled with loose pieces is not a protective system, however luxurious the exterior may appear.

Use separate padded compartments or individual soft pouches. Fasten chains and lay them flat or hang them without tension. Keep pairs together but prevent surfaces from rubbing. Support rigid necklaces and bracelets in their natural shape. Do not force a cuff, torque or articulated jewel into a compartment that changes its geometry.

Pearls should be kept away from sharp objects and extreme dryness or heat. They should not be sealed for years in a hot, arid environment. Opals and organic materials should not be left in direct sunlight or a closed car. Documents should be stored separately from the jewellery, with encrypted digital copies. A thief who finds the jewel should not automatically find every invoice, report and ownership detail beside it.

For an important collection, create an inventory with a reference number, description, photographs, laboratory report number, purchase or inheritance record, current location and most recent condition date. At VITALE 1913, we use structured inventory and documentation because memory is not an adequate control system when pieces move between home, safe, showroom, travel, repair and family members.

A simple home and travel protocol

Moment	Recommended action	Why it matters
After wearing	Wipe gently, inspect clasp and setting, return to its own compartment	Removes residues and detects change before the next wear
Before travel	Photograph condition, verify insurance territory and limits, choose what is genuinely needed	Creates a record and avoids carrying an unmanaged collection
During travel	Use carry-on custody, discreet packaging and approved secure storage; never checked luggage	Reduces loss, theft and handling risk
After travel	Reconcile the inventory and inspect pieces before returning them to long-term storage	Finds damage or missing components while the journey is recent
Before repair	Photograph, describe and obtain a written receipt listing the item and stones	Protects identity and creates a clear chain of custody
After repair	Check the work, update photographs and reports where the intervention changed the object	Keeps insurance and heritage records accurate

Professional inspection: what a gemologist actually checks

A professional inspection is not merely polishing. We examine claws, bezels, beads, channels, hinges, pins, clasps, jump rings, solder joints, chain links and the stability of centre and side stones. We look for metal wear, distortion, impact marks, chipped girdles, abrasion, looseness, missing rhodium, stretched pearl thread and previous repairs that may affect the next intervention.

The correct interval depends on the jewel and how it is worn. A high-set engagement ring worn daily deserves more frequent attention than a necklace worn twice a year. Pavé, shared prongs, moving parts and pearl stringing need particular observation. I advise an immediate inspection if a jewel snags on fabric, makes a new sound, rotates differently, shows a visible gap, loses a small stone, receives a blow or is resized.

Jewellery should also be inspected before a major event or long journey. It is far better to reinforce a worn clasp in Monte-Carlo before a wedding in another country than to discover the weakness during the celebration.

Restoration, remodelling and the responsibility to preserve evidence

A family jewel can have three values at the same time: material value, design or historic value, and emotional value. Restoration should respect all three. Before dismantling an inherited piece, document its condition, construction, marks, stone arrangement and family history. Once the original object is altered, some information cannot be recreated.

At VITALE 1913, we sometimes modernise a legacy jewel using the client's existing gemstones. The best result is not simply a fashionable new setting. It is a controlled transition: identify and photograph the original piece, agree which components must be preserved, record weights and reports, create the new design, and return or document unused materials. This protects trust and allows the family story to continue.

Not every old surface should be made new. Patina, hand engraving, historic tool marks and original proportions may be part of the object's identity. A competent jeweller should explain the consequences of polishing, re-tipping, laser welding, replacing stones or changing a mechanism before work begins.

Longevity is one of the most credible forms of ethical luxury

Ethical jewellery is often discussed only in terms of origin. Responsible sourcing is essential, but the life after purchase also matters. A jewel designed well, repaired intelligently and transferred between generations makes sustained use of precious materials and skilled labour. It resists the disposable logic that has entered many consumer categories.

VITALE 1913 was built around this idea long before sustainability became a marketing word. Our family history dates to 1913, our pieces are made through specialised Italian craftsmanship, and our service relationship continues after delivery. Cleaning, inspection, polishing, rhodium renewal, minor repair, expert documentation and thoughtful remodelling are not secondary services. They are part of the object itself.

The finest jewel is not the one that looks untouched because it was never worn. It is the one that has been worn with pleasure, maintained with intelligence and preserved with enough documentation that the next generation understands what it has received.

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