Jewelry Care, Repair, and Maintenance: The Professional Guide

Jewelry care knowledge is simultaneously a customer service competency, a sales tool, and a liability management practice. Customers who understand how to care for their jewelry protect their investment, maintain the appearance of the piece over time, and avoid the frustrating and costly damage that improper care produces. Professionals who provide this knowledge proactively — at point of sale and in follow-up — build trust, reduce post-purchase complaints, and create natural opportunities for ongoing customer engagement through cleaning and inspection services. This article provides comprehensive jewelry care guidance across all major materials.

Universal Care Principles

Several care principles apply across all jewelry categories. Avoid chemical exposure: chlorine (pool water, cleaning products), solvents (nail polish remover, hairspray, perfume), and acids (citrus juice, vinegar) can damage metals and gemstones in various ways. Remove jewelry before swimming, cleaning, gardening, and exercise. Store jewelry individually to prevent scratching — harder stones scratch softer ones, and metal-on-metal contact dulls finishes. Remove jewelry before sleeping in it regularly (prongs can snag fabric and loosen). Have significant pieces professionally inspected annually to catch loose stones, worn prongs, or structural issues before loss or damage occurs.

Care by Metal Type

Gold (all karats)

Gold jewelry can be cleaned at home with warm water, a few drops of mild dish soap, and a soft toothbrush for textured areas. Rinse thoroughly and dry with a lint-free cloth. Gold can be cleaned in a home ultrasonic cleaner — but only if the jewelry does not contain stones that are sensitive to ultrasonic cleaning (see gemstone section below). Professional polishing by a jeweler restores luster to scratched gold and can be done annually or as needed. Rhodium plating on white gold wears with time and will need renewal, typically every one to two years for frequently worn rings.

Platinum

Platinum develops a natural patina over time — a soft, matte finish that many collectors prefer to the original high polish. If high polish is preferred, professional polishing restores it. Clean with warm soapy water and a soft brush. Platinum is safe for ultrasonic cleaning unless stones contraindicate. Note that platinum scratches show as surface displacement rather than material loss — the metal is simply moved, not removed. Professional polishing returns displaced metal to its original position.

Silver

Silver tarnishes through reaction with sulfur compounds in the air. Clean with a silver polishing cloth for light tarnish; silver dip or paste for heavier tarnish. Rinse thoroughly after dip cleaning. Store silver in anti-tarnish pouches or with silica gel packets to slow tarnishing. Avoid ultrasonic cleaners for silver with stones, as they can loosen settings in softer silver mounts.

Care by Stone Category

Diamonds

Diamonds are the hardest natural material and can tolerate ultrasonic and steam cleaning in most settings. The main vulnerability is setting integrity — loose prongs allow diamonds to be lost during cleaning. Annual prong check before any cleaning is best practice. Avoid ultrasonic if the diamond has significant inclusions that could be propagated by vibration, or if the diamond is fracture-filled.

Corundum (ruby and sapphire)

Untreated and heat-treated corundum is robust: safe for ultrasonic and steam cleaning in secure settings. Fracture-filled corundum (glass-filled ruby) must never be cleaned ultrasonically or with steam — the heat and vibration can damage or dislodge the glass filling, catastrophically affecting the stone’s appearance.

Emerald

Emerald is the most care-intensive of the major precious stones. Never use ultrasonic cleaners — vibration can cause fractures to propagate and will remove the oil or resin from filled fractures, dramatically worsening the stone’s appearance. Never steam clean. Clean only with room-temperature water (not hot) and mild soap, with a very soft brush. Avoid sudden temperature changes. Re-oiling may be appropriate for significantly fractured stones after several years.

Softer and porous stones

Opal, turquoise, pearl, coral, amber, tanzanite (hardness 6-7), and peridot all require gentle care: warm water, mild soap, soft brush, air dry. No ultrasonic, no steam, no harsh chemicals. Pearls are particularly sensitive to acids (including perspiration) and should be wiped clean after wearing and stored flat to prevent silk stretching. Tanzanite’s perfect cleavage makes it vulnerable to sharp impacts — protective settings and careful storage are important.

When to See a Professional

Professional service is warranted for: annual prong and setting inspection, rhodium plating renewal, deep cleaning, re-stringing of pearl and bead strands (annually if worn frequently), stone replacement or repair, and structural repairs to clasps, shanks, and catches. Offering complimentary annual inspection to significant purchase customers is a customer service practice that generates touchpoints, catches problems early, and keeps the relationship active between purchases.