At 95% pure, platinum is the purest of all the precious metals - this is why it is sometimes referred to as 950 platinum. This purity level provides a fantastic shiny finish to a platinum engagement ring, perfect for maximising the brilliance of the diamond itself. Because it is generally 95% pure (18 carat gold is 75% pure), platinum jewellery does not fade or tarnish and keeps its looks for a lifetime. Platinum’s purity also makes it hypoallergenic and ideal for those with sensitive skin.

The most appealing characteristic of platinum is its durability. Each time other metals are scratched or polished, a tiny bit of metal is lost. But not with platinum. Whilst platinum does scratch, the mark on an item of platinum diamond jewellery is merely a displacement of the metal and none of its volume is lost.

Platinum is also very rare - about 30 times rarer than gold. As a result, you do pay a premium for this metal.