DIAMONDS EARTHS FACINATION
Natural diamonds form very deep under the Earth’s crust, in the upper mantel, which is made of molten rock, metals and other material. They consist of pure carbon which has been subject to immense and temperature for millions of years.
Only a very small percentage of diamonds that are mined are gem quality. As every diamond is unique they are one most interesting, sought after practical stones to use for jewellery. Being the hardest stone jewellers use often the first choice for engagement rings.
Over the last 10 years we have seen most diamonds even modest stones under 0.50ct being sent for grading and certification by laboratories all over the world. This has some use for the buyer and seller buy only if you can understand what is on the certificate or if the diamond dealer knows or explains the different price spreads similar looking diamonds are.
Over the next few weeks I will talk through the finer details of a certificate issued by the Gemological institute of America ????