Metals, styles and settings are important when choosing your perfect ring, but for me it’s the stone that takes centre stage. It’s all about the four ‘Cs’ colour, clarity, carat and cut. I adore intense colours for example and when looking at clarity, clear transparent gemstones with no imperfections or visible flaws are what to look out for. Coloured stone prices are calculated per carat (by weight not size) so similarly sized stones of different varieties may differ greatly in cost. Finally, cut is an important factor when choosing, a well-cut faceted gemstone evenly reflects light back across the surface area when held face up.