4Cs

GIA created the first, and now globally accepted standard for describing diamonds: Color, Clarity, Cut and Carat Weight. Today, the 4Cs of Diamond Quality is the global standard for assessing the quality of any diamond.

Cut

The Cut Grade measures how the individual proportions combine to affect the beauty of a diamond. Diamonds with a high cut grade will have a high degree of brightness, fire (rainbow colours) and scintillation (sparkle). High cut grades include "Excellent" and "Very Good" (Quasar Diamonds range), midrange includes "Good", and low end includes "Fair" and "Poor".

Colour

Quasar Diamonds are graded using the G.I.A and HRD colour grading scale (D-Z). Most diamonds are colourless to slightly yellow. The highest grade is "D" or colourless exceptional white +) and extends to "Z" or light yellow.

Clarity

All diamonds contain imperfections. The very best, and rarest, clarity is Flawless (FL). Because many inclusions are not visible to the naked eye, diamonds are graded under 10x magnification.