educate yourself. There’s an abundance of sources on the internet, with a few of the established ones being the GIA, the International Colored Gemstone Association and the CIBJO World Jewellery Confederation. Last but not least, let the stone speak to you. If you’ve purchased a coloured stone before, you’ll know that there’s something special about holding and potentially owning one. If you set your eyes on an emerald and there’s that spark—flawed and mottled notwithstanding—then by all means, go for it.