Mari Holzer. Diamonds. August 04th , 2017.
The ideal cut for fancy colored diamonds is the Radiant cut. This is the ideal shape so that it is possible to maximize the color. Yellow diamonds, however, can also be found in Oval Cut an Cushion cut and in Heart and Pear shapes. The rarest are the Emerald, Square Emerald and the Brilliant cuts (round shape). The price of these shapes are considerably higher for all fancy diamonds and not merely for yellow diamonds.
It is difficult to believe that any relation exists between the dark brownish-black lumps of coal and shimmering diamonds. The common element between the two is that they both are made up of carbon. The element carbon exists in the earth in different forms like coal, graphite, diamonds, etc. So the common factor between coal and diamonds is that they contain carbon. Then why they look different. Is it possible that diamonds are formed from coal? Let us find out.
Let's start with natural diamonds. These are formed and found about 100 miles beneath the surface of the earth. At this depth is where carbon rich rocks are provided with adequate heat and pressure to be melted. The high temperatures are generated by the earth's mantle, a layer made of molten rock that is compressed by the pressure of miles and miles of earth on top of it. This layer continues to churn and when the conditions are just perfect, molten rock may move upwards and cool over time. These parts of cooled molten rock may contain diamonds. Needless to say, this is a process that takes hundreds and maybe thousands of years to complete.
One does not just stumble upon the perfect diamond wedding ring, or diamond engagement ring, or even anniversary ring. You should make sure you find the ideal loose diamond and work from there.Man-Made Diamonds, A Buyer's Guide!
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