This sapphire ring draws the eye despite its very small size. The faceted stone in a minimalist solitaire setting shifts shade with every gesture of the hand - from deep navy to a cool blue as the light catches it from another angle. This form works well as an engagement ring, but it is just as often worn as a solitaire, for everyday wear, with no extra detailing around the stone.

Sapphires of such a pure colour and such a distinct play of light are rare, and a second piece with a similar character is easy to miss. Prices for silver and fine coloured stones keep rising steadily, so buying a ring like this today makes sense from a price standpoint. The stone is set in refined silver 925, coated with a layer of rhodium - a hard metal resistant to scratching, which keeps the band's shine from dulling over time. The alloy contains no nickel, so the ring stays comfortable even with daily wear. The silver bears the French maker's mark - confirmation of the metal's origin, struck in line with registration at the French assay office.

A solitaire like this feels right in the evening, worn with a little black dress and a silk blouse, when the hand remains the main focus of the look, with no extra bracelets or rings in the same area. The band's simple line keeps attention on the stone, and the navy flash of the sapphire contrasts well with the black of the fabric. Even in a very small size, this faceted stone catches the eye with every movement of the hand.