Tennis chains are one of those pieces where the price gap between a mall jewelry store and a direct-to-consumer brand can be enormous for what looks like the same amount of sparkle. Harlembling's #1 Bestseller Tennis Chain Necklace ($280.00) is the brand's flagship piece with 60 reviews behind it, so I wanted to see what's actually driving that popularity.
The chain is handmade from solid 925 sterling silver, finished either in rhodium for a white-gold look or electroplated in 14k gold, and set with cubic zirconia stones throughout. Harlembling describes the piece as carrying roughly 15-80ct of man-made diamonds depending on the width and length you choose, which is the main driver of how much sparkle and weight the finished chain has.
Using 925 silver as the base metal with gold or rhodium plating is a common approach for keeping iced-out pieces affordable compared to solid gold, and Harlembling backs the piece with a lifetime guarantee, which is a meaningful reassurance for a chain that's meant to be worn daily.

This is also one of the more flexible pieces in the catalog: it comes in five thicknesses (3mm to 7mm) and eight lengths (16 to 30 inches), so it works equally well as a subtle everyday chain or a much heavier statement piece, and it can be worn on its own or paired with a pendant.
For an iced-out tennis chain that doesn't require a mall-jewelry-store budget, Harlembling's bestseller is a reasonable pick, especially with the sizing flexibility to dial in exactly how bold you want it. Check out the Harlembling Tennis Chain and use the exclusive code ROBERTTHOMAS for 5% off your order, or browse Harlembling's full catalog of chains, pendants, and rings.