The natural diamond solitaire is the most iconic engagement ring combination in existence. Nothing compares to the simplicity of a single natural diamond, formed over billions of years, set in a minimal mount that lets nature's masterpiece speak for itself.

The heart shape is the most overtly romantic diamond cut — a modified brilliant with a distinctive cleft at the top. It requires exceptional cutting skill to achieve symmetrical proportions and balanced lobes. Heart shaped diamonds are a bold, meaningful choice for those who want their engagement ring to make a romantic statement.

Under £2,500, a 1ct lab-grown diamond engagement ring in platinum or 18K gold is well within reach — with budget left over for a more intricate setting style such as halo or side stone.

A natural solitaire focuses your investment on the stone — the most enduring part of the ring.