Aquamarine stud earrings play with a cool, clear blue that shifts in intensity with every turn of the head. The faceted cut disperses light into fine flickers, and the stone's colour - a deep, unsaturated blue-green of open seawater - stays distinct even under artificial light. The minimal stud form does not compete with the stone; all attention rests on that calm, cool colour.

We select both aquamarines for colour and clarity before setting them - only stones with an even, clean colour make it into the finished piece. Good aquamarines are becoming increasingly rare, and silver prices continue to rise, so today's price for this pair is genuinely reasonable. They are set in refined European sterling silver 925, free from nickel and allergenic additives - these earrings can be worn without concern about irritation. Rhodium deposited on the surface protects the metal against tarnishing and keeps a bright shine for a long time. The piece is signed with the French maker's mark - a guarantee of quality and the origin of the precious metal.

For the office, the earrings work well with a plain white or pale blue shirt - the cool tone of the aquamarine harmonises with those shades and accentuates the neckline. Against a graphite or deep grey blazer, the two aquamarines bring the only colour without breaking the understated whole. The simple stud form also suits hair worn up, when the stone sits fully visible at the ear.