The centrepiece is a small, solid barrel that slides freely along the chain. It’s set with a channel of deep blue, baguette-cut sapphires, arranged side-by-side so they catch the light as one continuous line of colour.

A fine, polished gold-plated chain holds a single cylindrical charm. The charm is flanked by two raised, rounded gold bands, which create a channel in the middle. Inside this channel sit sixteen baguette-cut sapphires, set vertically, shoulder-to-shoulder. Their long, flat facets create a band of deep blue that flashes with light as the charm moves.

The core of this necklace is solid 925 sterling silver, which gives it a nice weight. We plate it with a thick layer of 14K gold—which is 58.3% pure gold—for that warm, rich yellow colour. Then we add an E-coating, a clear, protective layer that seals the gold and helps it resist tarnishing and scratches from daily wear. The sixteen blue stones are genuine sapphires, the birthstone for September, cut into precise rectangles for this design.

• Material: 14K gold plate on 925 sterling silver
• Gemstone: 16 natural sapphires
• Chain Length: 16 inches with a 2-inch extender
• Warranty: 2-year warranty

This isn't a large or dangly necklace. The charm is compact and has a satisfying weight, sitting neatly at the collarbone. Because the sapphires are channel-set into the barrel, there are no prongs to catch on your clothes, making it really comfortable for everyday wear.