Marginalia

Note: Precious metal prices have gone crazy and as of March 2026, prices have continued their upward trajectory from the mid-2020s, building on significant gains seen in 2024 and 2025 amid economic volatility, inflation concerns, and industrial demand shifts. Since 2016 gold has increased 350% and silver 450% overall.

After decades at the jeweler’s bench, one thing becomes clear: the metals used in jewelry are not all created with the same purpose in mind. Some are chosen for durability and longevity. Others are chosen because they are inexpensive to manufacture or easy to sell. The difference between the two is rarely explained to the customer, but it has everything to do with whether a piece will last a few months or a few generations.

Over the years working with these metals I have cast them, forged them, soldered them, engraved them, repaired them, and sometimes had to explain why a piece failed long before its time.

A long time at the bench teaches you a few things.

Metals behave in predictable ways. Some age gracefully. Others reveal their weaknesses quickly. The difference usually has less to do with price than people imagine.

Most buyers assume jewelry metals differ mainly in color or cost. But the real differences are structural. Every alloy represents a set of compromises between beauty, strength, workability, and price. Some are designed to last. Others are designed simply to sell.

Once you understand that, jewelry starts to look a little different.

Take tungsten carbide, often advertised as an indestructible ring material. It is extremely hard, but hardness and toughness are different. Tungsten carbide behaves more like a ceramic than a metal. Strike it sharply or drop it onto tile or concrete, and it can fracture. In a machine shop it’s a superb cutting material but as a ring, its virtues are overstated. If your finger swells and you have to have a ring removed, it must be broken off. There is no resizing; the jeweler has to order a new one from the manufacturer.

Titanium and stainless steel are also fashionable today. They are reasonably durable, relatively inexpensive, and like tungsten carbide they  are popular for men’s wedding bands. But they come with practical limitations. Both metals work poorly with traditional stone settings, which limits their versatility in jewelry design and repair. They are also difficult to resize, though a determined jeweler may be able to adjust a simple band to a limited extent. More often, if a size change is needed, the original jeweler simply orders a replacement ring from the manufacturer. Many brands offer lifetime resizing warranties through this exchange system, though it is wise to confirm the policy before purchasing. 

If a titanium or steel ring has to be removed due to a swelled finger cutting the ring off is probelmatic but a manual or power ring cutter can cut through the tough material but hope that the jeweler has fresh blade along with a spare. In emergency situations, hospitals or fire departments typically have the necessary tools to safely remove a ring though it will cost an emergency room visit. Better to call around and find a jewelery store that can do it. Make sure to tell them the ring is stainless or titanium whichever applies to your case. These rings usually have to be cut from both sides to remove as they are too hard to bend open with pliers.

Gold-plated jewelry introduces a different issue altogether. What appears to be gold is often only a very thin layer over a base metal. In time, and sometimes a short one at that, that layer wears through, and the metal underneath begins to show itself. Vermeil gold or gold filled which is a thin layer of gold bonded over sterling silver can last longer, but it is still essentially a surface treatment.

One has to be very careful with modern mass-produced costume jewelry, much of which is manufactured in large volumes overseas. The issue is not simply one of durability, but also of materials and manufacturing standards. In many cases the underlying metals are inexpensive alloys whose exact composition is rarely disclosed. These may include significant amounts of nickel, lead, cadmium, or other toxic elements used to improve casting flow or reduce production costs.

The possible dangers of costume jewelry deserves an article of its own, as there can be real concerns associated with wearing such pieces for extended periods. While the quantities present in a finished piece are often small, some items tested by customs officials have been found to contain toxic levels of certain metals. 

The main problem is the extremely thin plating often used on costume jewelry, where what appears to be gold or silver is only a microscopic coating over a base metal. This ultra-thin layer wears through very quickly, even with normal use. Once the plating is gone, the underlying alloy is exposed, which can lead to discoloration, skin staining, allergic reactions, and if toxic metals are present, the gradual leaching of those elements through contact with the skin.

For occasional decorative use, this type of jewelry may serve its purpose. But it should not be mistaken for fine jewelry, either in durability or in the materials involved. In the long run, pieces made from well-understood precious metal alloys are safer, more stable, and far more satisfying to wear.

Even pure metals such as copper or brass come with their own compromises. Both tarnish readily, require regular maintenance to preserve their appearance, and may leave a green mark on the skin. For certain designs this can be perfectly acceptable. The wide range of patinas, particularly on copper, can be very attractive in the hands of an experienced artist. But such finishes demand careful upkeep to maintain their appearance and prevent excessive oxidation. For fine jewelry, most people expect something a bit more stable.

When we move into the traditional precious metals, the conversation becomes more intriguing, as these materials not only offer durability and aesthetic appeal but also carry significant cultural and historical value in the jewelry industry.

Sterling silver has been the standard silver alloy for centuries. It is beautiful, versatile, and familiar to every jeweler. But it tarnishes easily, and tarnish on silver is, somewhat paradoxically, one of its great attractions to the artisan. A slight oxidation settles naturally into recesses or can be placed there deliberately by the maker, deepening shadows and revealing form. In engraving and textured work especially, it gives the surface a dimensional quality that is difficult to achieve with other precious metals. Silver is the brightest of them all, and when that brightness is set against darker tones, the contrast can be striking—light and shadow working together to bring the work fully to life.

That said, it does require a bit of care. Tarnish can be both an ally and a nuisance. If left entirely unattended, it will gradually obscure the very details it once helped define, making the item less visually appealing and potentially diminishing its value over time. With normal wear, occasional cleaning, and sensible storage, the balance can be maintained—the brightness refreshed, the shadows preserved, and the piece allowed to remain much as the maker intended: responsive to the light.

Gold alloys solve many of those problems. Yellow gold, in particular, has endured for centuries because it resists tarnish, takes a fine polish, and can be repaired or reshaped without difficulty. The various karats, which measure the proportion of pure gold in the alloy, simply adjust the balance between color and strength. Pure gold is 24 karat (often marked 24K). When other metals are introduced to increase durability, the karat number decreases accordingly. For example, 18 karat gold (18K) contains eighteen parts gold and six parts alloying metals, giving it a rich color but somewhat softer character. 14 karat gold (14K), with a greater proportion of strengthening metals, contains a wee bit over 50% gold by proportion and offers a more durable balance for everyday wear while still retaining the familiar warmth of gold, if not a bit pale when placed side by side with 18 karat gold. 

White gold itself is a relatively modern development in the long history of jewelry. Until the early 20th century, platinum was the preferred white metal for fine jewelry. It was prized for its strength and naturally pale color, and during the Edwardian and early Art Deco periods, it became the metal of choice for delicate stone settings.

During the First World War, however, platinum was declared a strategic metal, and its use in jewelry was restricted. Jewelers began experimenting with gold alloys that could approximate its appearance. By alloying gold with nickel, metallurgists discovered they could produce a pale, hard metal that resembled platinum at a lower cost. This nickel-based white gold quickly became popular with manufacturers because it was durable, relatively inexpensive, and suitable for mass production. As a side note, nickel white gold is banned in the EU. Nickel allergies are very common, and this is the metal you would most likely develop a problem with. 

Aside from the risk of nickel allergy, another drawback of nickel white gold is that it must be polished and rhodium plated to mimic the bright white appearance associated with platinum. This plating needs to be renewed periodically, often every six months or so if the ring is worn regularly to maintain its best appearance. Unless the ring is covered under a store maintenance plan, this service usually comes at an additional cost. Repeated polishing over time will also take a toll on the ring itself, gradually accelerating wear, particularly in delicate areas such as prong settings. 

Later developments introduced palladium as an alternative alloying metal. Palladium white gold, for example, produces a naturally slightly pale white alloy that can be worn without plating and avoids the nickel allergies that trouble many people. It is a premium product, so it costs more, but it is a fine, tough, durable alloy. It is used less frequently in commercial jewelry but was often preferred in higher-end work.

In both cases, the goal was the same: to create a gold alloy that could evoke the appearance of platinum while remaining accessible to a wider market.

That leads us to platinum. Dense, stable, and remarkably durable. It demands respect at the bench; the temperatures are high, and the metal behaves differently under the file, but the finished result is hard to fault. Properly made platinum jewelry tends to age well.

Interestingly, the purest metals are not always the best choices. 24 karat gold and fine silver (.999) are both extremely soft. While they are indeed beautiful metals, they are also easily marked and bent. They have their place, though not always in jewelry meant for daily wear, as their softness can lead to damage and wear over time. Rings especially take a beating and unless really thick bend very easily. Earrings and pendants are usually fine but make sure the backs and or ear wires on earrings are of a harder alloy such as 18K. 

Modern alloys have improved some of these old materials. Argentium silver, for example, resists tarnish far better than traditional sterling and can be hardened through proper heat treatment. Used correctly, it is a genuine improvement but due to its greater cost is not as common use.

After enough years working with these metals, the lesson becomes fairly simple.

The best jewelry metals are defined by more than purity, price, and hardness. What matters is balance. Beauty, strength, workability, and longevity all have to coexist in the same material.

Some alloys are chosen because they are inexpensive to manufacture. Some alloys are chosen due to their attractive appearance in a display case. And a few are selected because they will still be doing their job long after the original owner is gone, providing lasting value and sentimental significance to future generations.

Those are the metals that eventually become heirlooms.

A piece of jewelry is a small thing in the world, but it often carries more meaning than its size suggests. If made well and from the right metal, it can be passed down for years without losing its purpose. That, at least, has always seemed to me the real measure of excellent jewelry.