Rodial Pink Diamond Instant Lifting Serum. Combining an expert blend of diamond powder and next-generation lifting active, Skin Tightener ST, dehydrated complexions are left feeling nourished and moisturised with an subtle veil of luminosity. This weightless serum works to retain moisture in the skin to help naturally plump the complexion while iconic diamond powder helps to reflect ambient light across the skin for a flattering, soft-focus finish.