Aggie Lala. Diamonds. August 08th , 2017.
GIA does not provide an "Ideal" cut grade rating, and an AGS "Ideal" cut grade is considered equivalent to the "Excellent" diamond cut grade of GIA. Also, GIA provides a symmetry demerit or "non-standard brillianteering" as it is referred to by GIA sometimes, to help manufactures to improve the standardized Tolkowsky cuts. AGS uses a more accurate combination of the proportional facet ratios to determine the quantity of light return in the diamond. It also takes into account the ray tracing metrics for this purpose. In case of GIA, however, the cut grading system is based on averages which are rounded off to determine the light return phenomenon.
Diamond studs are a hit amongst guys, especially those who love to set a fashion statement. So, if you have not yet experimented this style, it's time to grab one and wear that cool dude look.
Diamonds are an allotrope (structurally different forms of the same element) of carbon. To be more precise, they are made up of carbon atoms that are arranged in a specific manner. Though they are found naturally (in mines), man-made diamonds are also available. Cultured varieties are a type of synthetic diamonds, produced under extremely high temperature and pressure conditions.
India was considered as the only source of diamonds until the 18th century. India had a plenty of diamond mills at that time which was considered as one of an essential source of diamonds. Though, India still has many diamond mills that are capable to meet the requirements of diamonds throughout the world. But, later many other sources were identified which contained elements and potential of delivering diamonds. Brazil was one of the major sources of diamonds along with India during the 18th century.
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