A labradorite ring catches the eye before you even take in the details of the setting. The cabochon-cut stone hides a blue, at times steely flash against its dark background, one that appears and disappears with every turn of the hand. Jewellers have long associated this stone with calm thinking and self-confidence - here it accompanies a modern, understated ring design, intended for engagement but equally suited to everyday wear.

Before any labradorite makes it into a setting, we assess it for depth of colour and surface clarity - only a few specimens show a flash distinct enough to earn a place in this design. Good stones of this kind are becoming harder to find, and silver along with other precious metals keeps rising in price, which gives buying today a clear rationale. The stone is set in refined European sterling silver 925, coated with a layer of rhodium, a hard metal resistant to scratching, which keeps the surface from tarnishing or dulling and preserves its shine for a long time. The alloy contains no nickel or other harmful additives, so the ring can be worn without worry of irritation. The French maker's mark visible on the piece attests to the origin of the silver.

For office wear it pairs well with a plain shirt and a blazer in a muted grey or navy shade - the stone's blue flash brings the calm palette to life without breaking its character. It also suits a simple dress in a cool tone, when the hand is meant to stay the centre of attention. It weighs 3.1 grams, so it sits lightly on the finger, and its presence only becomes noticeable with the first gesture of the hand.