CK IMPEX

Customer Education

4C's Of Diamond

Carat

Carat, a fundamental metric in the world of diamonds, refers to the unit of measurement determining a diamond’s weight. Refers to the weight of the diamond. One carat is equivalent to 0.2 grams.

Color

Indicates the absence of color in the diamond. The highest grade diamonds are colorless, with the scale ranging from D (Colorless) to Z (Light Yellow Or Brown).

Cut

Describes the quality of the diamond’s facets, A well-cut diamond will have better sparkle and Brilliance.

Clarity

Diamond clarity is the quality of diamonds that relates to the existence and visual appearance of internal characteristics of a diamond called inclusions, and surface defects, called blemishes. 

Diamonds

A diamond is a precious gemstone and a crystalline form of carbon known for its exceptional hardness, brilliance, and sparkling appearance Diamonds have been highly prized throughout history for their use in jewelry, as well as for their industrial applications due to their hardness.

Formation Of Diamonds

Diamonds are formed deep within the Earth’s mantle under high pressure and temperature conditions, The process of diamond formation is known as “diamond crystallization” and typically involves many stages: Diamonds form under extremely high-pressure conditions, usually at depths of 140 to 190 kilometers (about 87 to 118 miles) beneath the Earth’s surface temperatures, generally ranging from 900 to 1,300 degrees Celsius (1,652 to 2,372 Fh ) During a volcanic eruption, molten rock containing diamonds rapidly ascends to the surface. Once at the surface, the volcanic material cools, and diamond deposits are left in pipes or dikes associated with the volcanic activity. Over time, weathering and erosion can expose these diamond deposits, making them accessible for mining. The entire process of diamond formation is extremely slow, taking millions to billions of years. This is why diamond deposits are not found everywhere, and they are considered very precious.

The process of diamond manufacturing begins with mining, where rough diamonds are extracted from the earth. These rough diamonds are then sorted and assessed for quality and size. The next step is cutting, where the diamonds are precisely shaped and faceted to enhance their brilliance. Polishing follows, where the diamonds are smoothed to achieve a flawless surface. Finally, the polished diamonds undergo a thorough inspection and grading before being set into jewelry or sold.

Certified Diamonds Non-Certified Diamonds
These diamonds have been evaluated, graded, and documented by a reputable gemological laboratory. The certification provides detailed information about the diamond's 4 Cs The certification from a recognized laboratory adds credibility and assurance to the diamond's quality. It allows buyers to make informed decisions based on standardized and expert evaluations.It also provides benchmark for comparing diamonds. It ensures that buyers know exactly what they are purchasing in terms of quality.Certified Diamonds: Certified diamonds often have better resale value because their quality is documented by a reputable laboratory.
Non-certified diamonds refer to diamonds that have not undergone an evaluation and grading process by a reputable gemological laboratory. Unlike certified diamonds, which come with an official document detailing their quality characteristics, non-certified diamonds may lack this independent assessment. However, the reliability and accuracy of this information depend on the expertise and honesty of the seller. Buyers may need to rely on the seller's expertise and trustworthiness in describing the diamond's attributes.