Field, J.E., ed. (1992) Properties of natural and synthetic diamond. Academic Press, London, New York. O’Donoghue, Michael and Louise Joyner. (2003) Identification of gemstones. Butterworth Heinemann, Oxford. Gem Reference Guide (1993) Gemological Institute of America, Santa Monica, California. ISBN: 0-87311-029-3

We have loose gemstones and semi-precious stones for jewellery making in a huge range of shapes and cuts. Customise your gemstones to suit your requirements and create unique jewellery pieces that your customers will adore. A fantastic book about stealing Colombian emeralds. Sometimes you can find the movie on cable staring Ryan O'Niel. The book is better. Roskin, Gary A. (1994) Photo Masters for Diamond Grading. Gemworld International, Northbrook, Illinois. ISBN: 0-9641-7330-1 Gübelin, Eduard J. and John I Koivula (2005) Photoatlas of Inclusions in Gemstones, Volume 3. Opinio Publishers, Basel. ISBN: 3-0399-9029-2 Schumann, Walter. (2009) Gemstones of the World. Newly rev. and expanded 4th ed. Sterling, New York.

Learning Center

Liddicoat, Richard T. (1989) Handbook of Gem Identification. 12th ed., rev., Gemological Institute of America, Santa Monica, CA . Gübelin, Eduard J. and John I. Koivula (2005) Photoatlas of Inclusions in Gemstones, Volume 2. Opinio Publishers, Basel. Gübelin, Eduard J. and John I Koivula (2005) Photoatlas of Inclusions in Gemstones, Volume 2. Opinio Publishers, Basel. ISBN: 3-0399-9029-2

Gems & Gemology in Review: Colored Diamonds. (2006) Gemological Institute of America, Carlsbad, CA.

Regional Mineral and Gem Guides

What is a cabochon? Cabochon gemstones usually have a flat bottom and polished domed top. They’re the ideal choice for earrings, pendants, and rings due to their opaque and unique natural inclusions. At Cooksongold, our cabochon gemstones come in a range of sizes and shapes, with our most popular designs including squares and teardrops. Buy Precious and Semi-Precious Stones at Cooksongold Sunagawa, Ichiro. (2005) Crystals: Growth, Morphology and Perfection. Cambridge University Press, Cambridge. This book is one of the best introductions to gemology. It covers all the basic topics in a well organized and easy to understand manner. The photographs and diagrams are well chosen to clarify concepts and to illustrate the varied appearances a gem species may have. Campbell Pedersen, Maggie. (2010) Gem and Ornamental Materials of Organic Origin. NAG Press, London.