The purity of the diamond

The purity of the diamond

A diamond may contain small crystals called inclusions.

To assess the purity of a diamond, we must study the number and position of inclusions involved in the stone.

The inclusions are deformations or accidents that occurred during the formation of a diamond in the earth, when he found himself in contact with different materials, or when he met with changes in temperature or pressures this explains their diversity.

Various international standards have been established and, schematically, they are summarized in the following classification: "loupe clean", "VVS", "VS", "IF" and "P".

"Loupe clean": this classification is the degree of the highest purity. This means that, under normal light and scrutinized x10, the diamond must appear free of inclusions.

"VVS (Very Small Inclusion)": in this case we note the presence of very very small inclusions, which can hardly be detected under the microscope x10.

"VS (Very Small Inclusion)": this term characterizes the rocks containing very small inclusions remains difficult to see fewer than 10 x magnifications.

"IF (Small Inclusion)": this is the next lower degree of purity. It applies to gems whose inclusions are small, but easy to see under the microscope x10.

"Pique"

Pique 1: This includes diamonds with inclusions, although discernible in principle, are barely visible to the naked eye when viewed through the crown.

Pique 2: This category applies to diamonds with inclusions, many or not, but relatively large, are visible to the naked eye through the crown.

Pique 3: This category features all diamonds with large inclusions, easily spotted with the naked eye through the crown and the number of which is seriously affecting the brilliance of the stone