You have seen the name a hundred times and never actually asked where it came from. A tennis chain is a straight line of stones, each one locked into its own link, so it catches light like a rope of it instead of a plain chain of metal. The Simulated Diamond Tennis Chain is built the exact same way the real ones are, minus the five-figure price tag, and it ships with a free chain thrown in.
Here's what actually makes a tennis chain a tennis chain, how the real ones get built, and why the version you buy doesn't need to cost what a used car does.
The short answer
A tennis chain is any chain where every link is set with a stone, edge to edge, with no bare metal showing between them. The name isn't a fashion term. It comes from a 1987 US Open match where Chris Evert stopped play because a diamond bracelet snapped off her wrist. She asked the umpire to hold the match until it was found, and the style got renamed on the spot. Diamond or simulated, solid gold or plated, anything built link by link with a stone in every link is a tennis chain by construction.
How one actually gets made
Each link starts as a tiny setting, usually a four-prong basket sized to hold one stone. The stones get cut to match first, so a jeweler isn't eyeballing sixty slightly different sizes and hoping they line up.
Every stone gets set into its own basket, the prongs bent over to lock it in place, and the baskets get joined into a single connected line. A well-made tennis chain lies flat and moves like fabric, because every link pivots on its own. A poorly made one kinks and twists, because the links are too stiff or unevenly sized.
What actually drives the price
On a real diamond tennis chain, the cost is almost entirely the stones. Even small diamonds add up fast once you're setting sixty or eighty of them in a row, and that's before you price the solid gold they sit in.
A simulated version uses 5A cubic zirconia, cut to the same round-brilliant facet pattern, set with the same prong-by-prong process, on a 316L stainless steel base with 18K gold PVD plating instead of solid gold. Same construction. Same look under normal light. The two most expensive line items just changed.
The honest part about simulated diamonds
5A cubic zirconia won't pass a jeweler's loupe or a diamond tester, and nobody selling it honestly should tell you otherwise. What it will do is throw the same brilliance and fire to the naked eye, at any distance a person actually looks at you from. That isn't a downside dressed up as a feature. It's the entire point: the exact look for a fraction of the price, and one less thing to panic about at the gym.
What to check before you buy one
Look at whether the stones actually stay consistent in size across the whole chain, not just the first few in the photo. Check that the setting feels secure, not glued-looking metal wrapped around a stone.
Then check the base metal. A cheap tennis chain runs brass or copper under a thin gold wash that fades and turns your neck green in weeks. A 316L stainless steel base with real PVD plating is waterproof, tarnish-resistant, and hypoallergenic, which is the difference between a chain you wear daily and one you save for special occasions.
Where Saphir comes in
The Simulated Diamond Tennis Chain is 5A cubic zirconia set on 316L stainless steel with 18K gold PVD plating, built to the same standard as GLD or Jaxxon at a lower price. It comes with a free chain and a lifetime warranty on every order. Jaxxon backs theirs for 365 days. Cernucci backs theirs for 12 months. Saphir's warranty doesn't expire.
If you want to see how this piece stacks up against a Cuban link or a rope chain before you decide, the chain style comparison guide lays out the differences.
The stones won't fool a jeweler, and they were never supposed to. They're supposed to fool everyone else, forever, without you thinking twice about a pool or a shower.