Wimbledon begins today. It seems a reasonable occasion to discuss the only piece of fine jewellery named after a sport.

The tennis bracelet, a thin flexible bracelet set with a continuous line of diamonds, takes its name not from Wimbledon but from the 1987 US Open, and not from anything that happened on the court in the ordinary sense. It takes its name from Chris Evert stopping a Grand Slam match because her bracelet fell off.

Evert was one of the dominant players in women's tennis for nearly two decades. She won eighteen Grand Slam singles titles. She was famous for her controlled baseline game and her absolute composure; the ice-queen reputation was well-founded and was the product of genuine psychological discipline, not natural coldness. She did not visibly react to bad calls or unforced errors. She did not argue with linesmen. She simply returned to the baseline and played the next point.

During a match at the 1987 US Open, her diamond bracelet clasp failed. The bracelet fell onto the court. Evert stopped play and asked the officials to halt the match while it was recovered. This happened. A Grand Slam match was paused because of a bracelet. The bracelet was found, the clasp was attended to, and play resumed. The press, who were present and needed a story, described it as her "tennis bracelet." The name stuck with the speed that only genuinely good names stick.

Before that afternoon, the piece had been called a diamond line bracelet, or an eternity bracelet, or simply a diamond bracelet. After it, it was the tennis bracelet everywhere, immediately, and has been since.

The piece itself

The design the name attached to is not complicated. A thin, flexible bracelet, set with a continuous line of round brilliant diamonds in individual settings, typically four-prong or bezel, so that each stone is separately mounted in a simple metal collet that links to the next. The flexibility is what matters: the individual settings create a bracelet that moves with the wrist rather than sitting rigid against it, which is why it stays comfortable through the range of motion that tennis, among other activities, requires.

The design is not new. Diamond line bracelets appear in Cartier catalogues from the 1920s. They appear in Van Cleef & Arpels archival photographs from the same period. The form is simple enough that it has been made continuously since there were diamonds to set and wrists to wear them on. What changed in 1987 was not the object but the name, and the name changed everything, because a name that specific, attached to an incident that specific, is worth more to the popular imagination than any amount of advertising.

It is the only piece of contemporary fine jewellery with a documented origin story that does not involve a designer or a house. The origin story is a clasp failure. This is unusual.

Chris Evert

She was thirty-two in 1987, in the final years of a career that had begun at sixteen. She had already won Wimbledon three times, the US Open six times, the French Open seven times. She was one of the best tennis players in history, and she was known, above most things, for never losing her composure.

The bracelet she wore was her own, a diamond line piece she wore regularly. She did not wear it as a statement or a piece of jewellery theatre. She wore it because it was hers and she wore it on court as she wore it elsewhere. The incident was not engineered. Nobody had arranged for a diamond bracelet to fall onto an Arthur Ashe Stadium court during a match for promotional purposes. It simply happened, and the name followed.

Evert has spoken about the incident in interviews since. The bracelet mattered to her. Stopping the match was not a calculation. It was the response of someone who did not want to lose something specific. The composure that was famous in her game apparently had limits, and one of them was a falling bracelet.

There is something appealing about this. The player who never showed emotion on court showed, in a moment no one had scripted, that she had the same attachment to objects that the rest of us do.

What to look for when buying

The tennis bracelet is one of the most versatile fine jewellery purchases available. It works with almost everything: with a watch, with other bracelets, worn alone. It sits flat on the wrist rather than standing proud of it, which means it passes under a shirt cuff without catching. It does not date in the way that more stylistically specific pieces date. It is a reasonable first bracelet for anyone building a collection who wants a piece that will be worn consistently rather than reserved for occasions.

The variables that determine quality and value:

Total carat weight and stone count. These two figures together tell you the average per-stone weight, which tells you a great deal about how the bracelet will look. A bracelet of 3 carats total weight with forty-five stones has stones of approximately 0.067 carats each: small, delicate, a fine and subtle bracelet. A bracelet of 3 carats total with twenty-eight stones has stones of approximately 0.107 carats each — more visible, more substantial. Both are legitimate choices; they are different objects. Ask for both numbers before buying.

Stone quality. The individual stone quality in a tennis bracelet matters more than in most other settings, because the stones are all visible simultaneously and inconsistency is apparent. A bracelet where the stones are mismatched in cut or colour — one slightly warmer, one slightly better proportioned — reads as assembled from mismatched inventory, because it was. Ask for the 4Cs of the stones, or at minimum the colour and clarity range. For a bracelet intended to look consistent, the stones should be matched.

The clasp. The clasp is the part that failed for Evert and is the part most often underspecified in a tennis bracelet. A box clasp with a safety catch is the standard for quality pieces; the safety catch is a secondary mechanism that prevents the clasp from opening under pressure even if the primary closure weakens. A fold-over clasp without a safety catch is a less secure option. Try the clasp before buying: it should open and close smoothly with a definitive click, not loosely or stiffly.

Fit. The bracelet should have approximately one finger's width of slack when worn. Too tight and it rides against the wrist and is uncomfortable. Too loose and the clasp is under more stress than intended and the bracelet reads as ill-fitted. The Evert incident was a lesson in clasp fit, and the lesson is worth internalising before wearing a diamond bracelet on a tennis court or, indeed, anywhere active.

Wearing it

The tennis bracelet is usually worn alone or with a watch. The combination of a simple tennis bracelet and a watch on the same wrist is one of the cleaner configurations in contemporary jewellery wearing, as the two objects occupy different registers (one tells time, one is purely decorative) and don't compete.

Wearing a tennis bracelet with other bracelets — a bangle, a chain bracelet, a Cartier Love bracelet — works when the pieces are at similar weight levels. A very fine 1-carat tennis bracelet alongside a heavy gold bangle reads as mismatched; a 3–5 carat bracelet alongside a substantial chain bracelet works.

The bracelet is also, unlike many fine jewellery pieces, appropriate for sports. This is the joke the name contains: the piece is named after a sports incident, and it is genuinely suitable for active wear in a way that a substantial stone ring or heavy earrings are not. The flat profile, the flexible setting, the security of a good clasp: these are features rather than incidental qualities.

Evert resumed the match. She lost the set she was playing. She won the match. The bracelet was presumably clasp-repaired before she wore it again.

Frequently asked questions

Why is it called a tennis bracelet?

The tennis bracelet takes its name from an incident at the 1987 US Open, when Chris Evert's diamond bracelet clasp failed mid-match and the bracelet fell onto the court. Evert stopped play to have the bracelet found before resuming. The press described the piece as her "tennis bracelet," and the name became the universal term for the style — a thin, flexible bracelet set with a continuous line of diamonds.

What is a tennis bracelet?

A tennis bracelet is a thin, flexible bracelet set with a continuous line of individually mounted diamonds — typically round brilliants in four-prong or bezel settings — linked so that each stone's setting connects to the next. The individual settings create flexibility that allows the bracelet to move with the wrist. Before the 1987 US Open incident, the style was called a diamond line bracelet or eternity bracelet.

How much does a tennis bracelet cost?

A diamond tennis bracelet in 18-carat white gold or platinum ranges from approximately £800 for a very fine bracelet of around 1 carat total weight to £10,000 and above for a 5-carat bracelet with high colour and clarity grades. The most commonly purchased range for a fine jewellery piece is £2,000–£6,000 for 2.5–5 carats total weight in good quality stones. Lab-grown diamond tennis bracelets are available at significantly lower price points with identical appearance.

How do you choose a tennis bracelet?

Ask for the total carat weight and the total stone count — these two figures together tell you the average per-stone size and significantly affect how the bracelet looks. Ask for the colour and clarity grades of the stones, and confirm they are matched rather than varied across the bracelet. Check the clasp: a box clasp with a safety catch is the most secure option. The bracelet should have approximately one finger's width of slack when worn on the wrist.

Can you wear a tennis bracelet every day?

Yes, and it is well-suited to daily wear. The flat profile sits under a shirt cuff without catching, the flexible setting is comfortable through a range of motion, and the simple form does not date. A good quality clasp is important for daily wear — check it periodically and have a jeweller inspect the settings and clasp annually.

Related reading

Sources: US Open official records, 1987; Chris Evert interview references in WTA Tour historical documentation; GIA diamond grading standards; current UK retail pricing for diamond tennis bracelets, 2025–2026.