In 2026, preloved luxury becomes the smarter, more sustainable way to shop. Discover why second-hand luxury handbags are a conscious investment with lasting value.
07/01/2026
Summer is one of the most demanding seasons for fine jewelry and luxury costume jewelry. Sunlight, heat, sweat, seawater, pool chlorine, and even certain cosmetics can accelerate the deterioration of valuable materials such as gold, silver, diamonds, and pearls.
If you own pieces from brands such as Cartier, Chanel, Hermès, Tiffany & Co., Van Cleef & Arpels, Bulgari, or Pomellato, following a few simple care habits can help you keep them in excellent condition for many years. It can also help preserve their value should you decide to sell them in the future.
In this guide, we explain how to protect your fine jewelry and luxury costume jewelry during the summer with professional recommendations.
Many people believe that luxury jewelry is practically indestructible. However, even pieces made from high-quality materials can deteriorate when they are continuously exposed to certain conditions.
The main threats are:
These factors can affect the shine of metals as well as the stability of gemstones, pearls, enamel, and special finishes.
Swimming while wearing jewelry may seem harmless, but salt water can accelerate the deterioration of many materials.
Besides the corrosive effect of salt, there is another much more common risk: losing a piece of jewelry.
Cold water causes fingers to contract slightly, increasing the possibility of a ring slipping off without you noticing.
Earrings, bracelets, and necklaces can also come loose because of the movement of the water.
Our advice: store all your jewelry in a safe place before entering the sea.
Yes.
The chlorine used in swimming pools can react with certain metals and cause a gradual loss of shine.
In antique or particularly delicate pieces, it may even weaken some soldered joints over time.
Although occasional exposure does not usually cause serious damage, repeating this habit summer after summer can affect the preservation of the piece.
We sweat considerably more during the summer.
Sweat contains mineral salts and natural acids that can accumulate on the surface of jewelry.
This may cause:
For this reason, it is advisable to wipe jewelry with a soft cloth after wearing it.
Sunscreens contain oils, UV filters, and other ingredients that leave a film on jewelry.
The same applies to perfume, cologne, hairspray, and cosmetic products.
Over time, this buildup reduces the natural brilliance of gold and gemstones.
The best practice is to apply cosmetic products first, wait a few minutes, and put on your jewelry afterward.
Storage is just as important as cleaning.
Some basic recommendations include:
Fine jewelry should always be stored in its original box or in a jewelry case with individual compartments.
Gold is one of the most durable metals, but it still requires maintenance.
A simple cleaning method involves using:
Never use abrasive products or scouring pads.
Diamonds are extremely hard, but grease and cosmetic residue can noticeably reduce their brilliance.
Gentle cleaning with lukewarm water and mild soap is usually enough to restore their sparkle.
For particularly valuable pieces, it is advisable to visit a professional periodically so that the prongs holding the stone can be inspected.
Pearls require completely different treatment from other gemstones.
They are especially sensitive to:
They should never be submerged in water for long periods or cleaned with chemical products.
Ideally, wipe them with a slightly damp cloth after every use.
Luxury costume jewelry from brands such as Chanel, Dior, and Hermès is made with high-quality materials, but it is still more delicate than jewelry made entirely from precious metals.
Gold plating, enamel, crystals, and resin can deteriorate without proper maintenance.
To preserve these pieces for many years:
If you wear your jewelry frequently, an annual inspection can help detect minor wear before it becomes a serious problem.
A professional inspection can check:
This preventive maintenance is particularly advisable for high-value pieces.
Well-preserved jewelry and luxury accessories tend to attract greater interest on the second-hand market.
Proper maintenance, together with the original box, certificates, and purchase receipt when available, can make a piece more attractive to future buyers.
At Keway Bags, we assess jewelry, watches, and luxury accessories from leading international brands. We provide professional valuations based on authenticity, condition, and market demand.
Caring for your jewelry correctly during the summer takes only a few minutes, but it can make a considerable difference in the long term.
Avoiding contact with salt water, chlorine, cosmetics, and excessive heat, together with proper cleaning and storage, will help preserve the shine, beauty, and value of your pieces for many years.
Whether you are considering selling, refreshing your collection, or simply learning the current value of your fine jewelry or luxury costume jewelry, Keway Bags offers a professional valuation service backed by more than a decade of experience in the second-hand luxury market.
Do you have any questions? Are you interested in any of our second-hand designer bags? Do you want to sell us your bag? Contact us without obligation, we will assist you as soon as possible.
