A faceted blue topaz brings a calm, cool blue into this ring - a shade that recalls a clear winter sky. The very small, multi-faceted stone catches light from every angle, and each glint on its surface shifts with the movement of your hand. The solitaire form is spare here, focused entirely on the stone, with no extra details to distract from its colour. It's a minimalist choice for a hand that likes a subtle yet distinctive detail.

Each topaz is examined carefully before it's set, for depth of blue and clarity, which is why quality stays high while the price remains reasonable. Silver and precious metals are rising in price, and good stones are getting harder to find, so buying a ring like this today makes sense from a value standpoint. The core of the ring is refined sterling silver 925 of European quality, and it's the fineness mark that confirms the purity of this alloy. The layer of 18-carat gold, compliant with the vermeil standard and marked with the stamped V, is over 5 microns thick here - it's the gold, not the silver, that touches the skin, giving a smooth, refined feel. The piece is stamped with the French maker's mark, a legally protected mark registered with the assay office in France, which attests to the origin of the metal.

A ring like this suits a spring coat well - a pastel trench, a silk scarf in shades of blue, a light-coloured bag. On the hand, in the gesture of holding a coffee or adjusting a scarf, the blue of the topaz stands out clearly against muted tones. It works just as well with a simple shirt and loose trousers, when the whole look stays minimalist. Its very small size and lightness - 2.3 g - mean it can be worn easily all day, from morning through to an evening out.