This vintage ring with blue topaz combines an ornate, old-fashioned form with the stone's bold, cool colour. The central faceted blue topaz is surrounded by a halo of 24 cubic zirconia stones, which echoes the lacy, antique pattern of the setting and adds density to it. The stone's hue is a saturated, cool blue - as the hand moves, facet after facet catches the light and sends it back in small flashes. The very big size of the ring makes the form look fuller on the finger, without losing its vintage character.

We assess each stone for colour and clarity before it is set, which is why the topaz in this ring has an even, deep shade. Such quality at a reasonable price is rare today, as silver keeps getting more expensive and good stones are increasingly hard to source. The setting is refined silver of European quality, sterling silver 925, and this fineness confirms the purity of the alloy, free of nickel and harmful additives. The rhodium layer is hard and scratch-resistant, so the metal's shine lasts long without darkening over time. The silver, stamped with the French maker's mark, carries confirmation of the metal's origin.

For the office, the ring pairs well with a smooth shirt and a blazer in muted, cool tones - the blue of the topaz brightens up grey and navy without unnecessary contrast. It also suits a simple shirt dress or a classically cut sweater, where the hand stays the centre of attention. The vintage pattern of the setting fits well with the current return to ornamental jewellery forms. This particular piece, with its halo of 24 cubic zirconia stones around the topaz, works just as well for everyday wear as for evening styling.