The lapis lazuli cabochon reveals a deep navy hue threaded through with golden veins that catch the light with every movement of the hand. A single cubic zirconia set beside it adds a distinct, cool sparkle and draws the eye along the whole band. The stone's big size and the ring's classic, understated form make it a fitting choice for an engagement ring - no unnecessary flourishes, but plenty of character.

A cabochon like this is chosen by hand, examining the colour and the pattern of veins against the light until a stone with the right depth of colour turns up. That's why, at this quality of stone, the price stays reasonable, and it's worth considering now, since silver and good stones keep rising in price. The band is made of refined sterling silver 925 with a high-purity alloy, free of nickel and other harmful additives, so the metal doesn't irritate the skin. A layer of rhodium protects the surface against tarnishing and scratches, so the shine lasts a long time without extra polishing. The piece is stamped with the French maker's mark, which attests to the silver's origin. In many cultures lapis lazuli has been associated with intuition, harmony and idealism, which fits well with the character of an engagement gift.

Styled for the office, this ring pairs well with a smooth shirt and a blazer in muted, cool tones - the stone's navy doesn't get lost against grey or charcoal wool, and with a gesture of the hand, for instance during a handshake, the cabochon catches the eye. In the evening it works well with a simple, dark dress. The big cabochon and the small cubic zirconia together create a distinct yet understated accent on the finger.