Cubic Zirconia
Cubic Zirconia (CZ) is a synthetic gemstone that is often used as a diamond simulant.
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Crystal
An internal crystal in a diamond refers to a type of inclusion (a naturally occurring characteristic inside the diamond).
Crown Height Percentage
The diamond crown height percentage refers to the ratio of the height of the crown (the top portion of the diamond) relative to the total depth of the diamond.
Crown Height
The crown height of a diamond refers to the vertical measurement of the crown portion of the diamond, which is the area above the girdle (the widest part of the diamond).
Crown Angle
The term “diamond crown angle” typically refers to the angle at which the crown of a diamond (the upper portion above the girdle) is cut.
Crown
A diamond crown refers to a piece of jewelry, often a tiara or headpiece, that is adorned with diamonds and designed to be worn on the head.
Conflict Diamonds
Conflict diamonds, also known as blood diamonds, are diamonds that are mined in war zones or regions controlled by rebel forces who use the profits to fund armed conflict against legitimate governments.
Coloured Diamond
A coloured diamond is a diamond that exhibits a hue other than the traditional colourless range.
Colour
Diamond Colour is one of the most important factors in determining a diamond’s quality and value. DCLA uses an official master set of diamonds to compare the diamond in question and determine its exact colour grade.
Cold Laser Inscription
A diamond cold laser inscription is a process where a laser is used to etch a unique identifier, such as a serial number, logo, or personalized message, onto the girdle (the outer edge) of a diamond.