Emerald Cut Moissanite Half Eternity Ring, 925 Silver

Emerald cut is the step cut, with long flat facets in place of the sparkling pattern of a round stone. Instead of scattered flashes you get long, clean bands of light, which gives the stone a sleek, architectural look. In a half eternity band the effect is a neat row of rectangles across the top of the finger, with a plain shank underneath. That plain back is the practical advantage, because it sits comfortably and does not catch on pockets.

Each stone measures 3x5mm and weighs about 0.5ct, and the stones are moissanite. Step cuts show clarity and colour more openly than brilliant cuts, so there is less sparkle to hide behind, and moissanite holds up well to that scrutiny. It measures 9.25 on the Mohs scale, so the flat facet edges stay sharp, and its refractive index of about 2.65 is higher than diamond's, which brings extra life to an otherwise calm cut.

The band is pure 925 sterling silver, offered in silver, gold or rose gold finishes. Silver is the coolest and most neutral choice and pairs with white metal jewellery. Gold warms the stones and suits yellow toned watches and chains. Rose gold is the softest of the three. Ring sizes run from US 4 up through 9 and beyond. A half eternity is easier to resize than a full one, but order to a measured size anyway.

• Stone: emerald cut moissanite, 3x5mm, about 0.5ct each
• Metal: pure 925 sterling silver
• Finish: silver, gold or rose gold
• Ring sizes: US 4, 5, 6, 7, 8, 9 and up
• Style: half eternity band
• Suits: wedding band or stacking ring