New, revised, expanded edition of the first and only book of its kind. Covers the latest gems, synthetics, treatments, and instruments. Easy to use. Practical. Non-technical. Shows how to identify diamonds, coloured gemstones, and pearls, and separate them from fakes and look-alikes. Explains what instruments are needed, how to use them, where to get them, and what should be seen for each gemstone. No science background necessary. Faster than you can imagine, anyone can learn to identify most of the gems and imitations found in the marketplace. This practical volume is the key to avoiding costly mistakes and recognising profitable opportunities. Essential reading for collectors, investors, jewellery lovers, hobbyists, jewellers, antique dealers, and gemmology students. With this highly accessible guide, anyone can begin to master gem identification.