Coated Diamond or Coating
A coated diamond refers to a diamond that has undergone a treatment where a thin layer of material is applied to the surface of the diamond to alter its colour, appearance, or shine.
Diamonds
Cognac
A Cognac diamond is a type of brown diamond that is characterized by its rich, warm brown hues with shades ranging from light yellow-brown to deep, intense reddish-brown.
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.
Cleavage
Cleavage in a diamond refers to the ability of a diamond to split or fracture along specific planes due to its crystalline structure.
Cloud
A cloud in a diamond refers to a type of inclusion consisting of tiny, hazy clusters of fine, needle-like inclusions that appear as a clouded or milky area within the diamond.
Clarity
Diamond clarity refers to the presence and visibility of inclusions (internal flaws) and blemishes (external flaws) within or on the surface of a diamond.
Clarity Enhancement
Clarity enhancement in diamonds refers to the process of improving the appearance of a diamond by reducing the visibility of inclusions and blemishes.
CIBJO
CIBJO, also known as The World Jewellery Confederation, is a global organization that represents the jewellery industry. It brings together national jewellery trade associations from around the world
Chameleon-Type Diamond
Chameleon diamonds typically shift from an olive green or grayish-green hue to a yellow or orangey-yellow shade when exposed to heat