3mm Moissanite Bracelet, Adjustable 14cm to 21cm, 925

An adjustable chain removes the hardest part of buying a bracelet, which is guessing the size. This one slides to fit across a 14cm to 21cm wrist, so a slim wrist and a broad one can both wear the same product. It also means you can wear it snug on some days and looser on others, and it will still fit if your wrist changes with the seasons. That flexibility is why adjustable bracelets make such dependable gifts for someone whose size you are unsure of.

The stones are 3mm moissanite. That is a good working width. It is large enough to catch light from across a table and small enough to wear next to a watch without competing with it. Moissanite has a refractive index of about 2.65 against diamond's 2.42, so it flashes more fire, and at 9.25 on the Mohs scale it keeps its polish against desks, steering wheels and door frames, which is where a wrist takes its hardest daily knocks.

Choose between silver colour, gold colour and rose gold colour. Silver colour is the cool, white metal option and sits well beside a steel watch. Gold colour is the classic warm choice. Rose gold is softer and suits most skin tones. All are plated 18k over 925 sterling silver, so the base metal will not tarnish the way plated brass does. Plating does wear with time, so take the bracelet off before swimming and keep it clear of perfume.

• Stone: 3mm moissanite
• Metal: 925 sterling silver, 18k plated
• Finish: silver colour, gold colour or rose gold colour
• Fit: adjustable chain, 14cm to 21cm wrist
• Care: remove before swimming