Moissanite Tennis Bracelet, 2mm to 6.5mm in 925 Silver

A tennis bracelet is a continuous line of identical stones, and its whole appeal is how evenly it catches light. Each stone sits in its own setting on a flexible chain of links, so the bracelet bends around the wrist and keeps every stone facing outward instead of rolling under. That flexibility is also what separates a bracelet that sparkles while you type or gesture from one that only looks good lying on a table.

The stones are moissanite, which suits a bracelet better than most gems because wrists take more knocks than anywhere else you wear jewellery. It measures 9.25 on the Mohs scale against a diamond's 10, so desks, door frames and watch straps do little to it. Its refractive index of about 2.65 sits above diamond's 2.42, which gives more coloured flash under moving light. The chain is 925 sterling silver plated in white gold, so the whole line reads as one cool, bright colour.

Stone width sets the personality. The 2mm and 2.5mm are slim lines that sit comfortably beside a watch. The 3mm and 4mm are the balanced middle and the most common choice. The 5mm and 6.5mm are bold, wide bracelets meant to be worn alone. Lengths run from 14cm to 22cm, so measure your wrist and add about 1.5cm for a comfortable drape. Larger wrists and wider stones usually pair best.

• Stone: round moissanite
• Widths: 2mm, 2.5mm, 3mm, 4mm, 5mm, 6.5mm
• Metal: 925 sterling silver, plated white gold
• Lengths: 14cm to 22cm
• Style: continuous tennis line
• Suits: women and men