High-temperature and high-pressure treatment of diamond is becoming an important technology to elaborate diamonds. This is the first book providing a comprehensive review of the properties of HPHT-treated diamonds, based on the analysis of published data and the work of the authors. The book gives a detailed analysis of the physics of transformation of internal structures of diamonds subjected to HPHT treatment and discusses how these transformations can be detected using methods of optical microscopy and spectroscopy. It also gives practical recommendations for the recognition of HPHT-treated diamonds. The book is written in a language and terms which can be understood by a broad audience of physicists, mineralogists and gemologists.

Raman Spectroscopy in Archaeology and Art History highlights the important contributions Raman spectroscopy makes as a non-destructive method for characterising the chemical composition and structure and in determining the provenance and authenticity of objects of archaeological and historical importance. It brings together studies from diverse areas and represents the first dedicated work on the use of this technique in this increasingly important field. Coverage includes: An Introduction to Raman Spectroscopy, including practical aspects of Raman spectroscopy and complementary techniques; Dyes and Pigments; Artefacts; Biological Materials and Degradation; Jewellery and Precious Stones. The book contains a broad selection of real-world examples in the form of case studies to provide the reader with a true appreciation of the procedures that need to be invoked to derive spectroscopic information from some of the most challenging specimens and systems. Colour illustrations of objects of investigation and a database of 72 Raman spectra of relevant minerals are included. With its extensive examples, Raman Spectroscopy in Archaeology and Art History will be of particular interest to specialists in the field, including researchers and scientific/conservation staff in museums. Academics will find it an invaluable reference to the use of Raman spectroscopy.

This edition has been completely revised to cover the latest methods of gem enhancement and identification, as well as the most up-to-date test instruments and laboratory techniques.

one person can accomplish big things.

Newly updated and expanded, Diamonds gives you all the information you need to buy, collect, sell—or simply enjoy—diamonds with confidence and knowledge. Whether you are buying a diamond for an engagement ring, anniversary, to commemorate a special moment or for personal pleasure, today it is more important than ever to understand what you are buying. There are new shapes and cuts, fancy colors, high-tech treatments and sophisticated frauds. There are new ways to buy—such as Internet auctions. Buyers need a source of expert guidance. Practical, comprehensive and easy to understand, this book offers in depth all the information you need to buy sparkling diamonds with confidence, including: What is a diamond? An in-depth look at factors affecting differences in quality and cost. Diamond grading reports—why all the information is important, and what it tells you. How to compare prices. How to spot differences in stones that may appear to be the same quality. How to protect yourself from misrepresentation. Questions to ask when buying any diamond. What to get in writing. How to get what you want within your budget. Important information about buying on the Internet ... and much more! Written by an “insider,” this easy-to-read guide is the “unofficial diamond bible” for anyone who wants to get the most for their money and enjoy what they have purchased.

This handbook is the most comprehensive compilation of data on the optical properties of diamond ever written. It presents a multitude of data previously for the first time in English. The author provides quick access to the most comprehensive information on all aspects of the field.

Newly updated and expanded, Diamonds gives you all the information you need to buy, collect, sell—or simply enjoy—diamonds with confidence and knowledge. Whether you are buying a diamond for an engagement ring, anniversary, to commemorate a special moment or for personal pleasure, today it is more important than ever to understand what you are buying. There are new shapes and cuts, fancy colors, high-tech treatments and sophisticated frauds. There are new ways to buy—such as Internet auctions. Buyers need a source of expert guidance. Practical, comprehensive and easy to understand, this book offers in depth all the information you need to buy sparkling diamonds with confidence, including: What is a diamond? An in-depth look at factors affecting differences in quality and cost. Diamond grading reports—why all the information is important, and what it tells you. How to compare prices. How to spot differences in stones that may appear to be the same quality. How to protect yourself from misrepresentation. Questions to ask when buying any diamond. What to get in writing. How to get what you want within your budget. Important information about buying on the Internet ... and much more! Written by an “insider,” this easy-to-read guide is the “unofficial diamond bible” for anyone who wants to get the most for their money and enjoy what they have purchased.

Diamond is the record-setter in many mineralogical properties such as hardness, diffusivity, thermal conductivity, purity, and covalency of bonding. Similarly, diamond, as the premier gemstone of the mantle holds primacy for geological features such as age and depth of origin. Diamond was among the first crystalline structures to be solved by X-ray diffraction and the first materials measured for their Raman spectrum. At more than 80 billion USD in yearly commercial value, diamond sets the record for the most traded, valuable mineral on the planet. Despite its chemical simplicity, diamond has been the object of more research effort, and had more scientific and popular press pages written about it, than any other mineral.

The Global Diamond Industry: Economics and Development brings together a collection of papers covering various aspects of the diamond industry including economics, law, history, sociology and development across two volumes.

This colorful book offers you a window into the world of Mahatma Gandhi, one of the most amazing people of the twentieth century. You will learn about Gandhi’s life—from his time as a student in London to his work for equality in South Africa and India—and his methods of peaceful, but not passive, resistance to injustice.