A diamond earrings which has no apparent colour is termed colourless. The colourless GIA Certified Diamond transforms the light which enters it and acts as a prism, dividing light into a rainbow of colours known as the ‘fire’ of the diamond.
Clean your diamond fashion regularly using either commercial jewellery cleaner or a solution of one part ammonia and six parts water. Dip the jewellery into the solution and use a soft brush to loosen any dirt that has accumulated under the setting. This will greatly increase the brilliance of your GIA Certified Diamond.
In a well-made unique engagement ring, a high percentage of light entering through the crown starts out striking the pavilion outside the critical angle.