What Are Natural Diamonds?

Natural diamonds are precious gemstones formed deep within the Earth's mantle under extreme heat and pressure over billions of years. They are brought closer to the Earth's surface through volcanic eruptions and are then mined, cut, and polished into the beautiful diamonds used in fine jewelry.

Each natural diamond is unique, with its own characteristics, making it a rare and timeless symbol of love, luxury, and elegance.

Formation of Natural Diamonds

Natural diamonds are created approximately 140–190 kilometers beneath the Earth's surface under intense heat and pressure.

1. Formation: Pure carbon atoms crystallize naturally over billions of years.
2. Volcanic Eruptions: Diamonds are carried to the Earth's surface through kimberlite and lamproite volcanic pipes.
3. Mining & Processing: The rough diamonds are extracted, sorted, cut, and polished before reaching the jewelry market.

Because of their natural origin and rarity, each diamond possesses unique inclusions and growth patterns that tell the story of its geological journey.

Physical, Chemical & Visual Properties

Natural diamonds are composed entirely of crystallized carbon.

They are the hardest naturally occurring substance, ranking 10 on the Mohs hardness scale.

Their exceptional brilliance, fire, and sparkle make them one of the most sought-after gemstones in the world.

How Natural Diamonds Are Certified

• Expert Grading: Natural diamonds are evaluated based on the internationally recognized 4Cs—Cut, Color, Clarity, and Carat Weight.
• Certification: Leading gemological laboratories such as GIA, IGI, and GCAL provide grading reports that verify the authenticity and quality of natural diamonds.
• Unique Identity: Every certified diamond has its own grading characteristics and report number.

Understanding the 4Cs

Diamond Cut: The Key to Sparkle

What Is Diamond Cut?

Cut refers to how well a natural diamond has been shaped and faceted by skilled craftsmen.

It determines how efficiently light enters and exits the diamond, creating brilliance, fire, and sparkle.

Even a diamond with excellent color and clarity will appear dull if it has a poor cut.

Cut Grades

1. Excellent: Superior brilliance and ideal proportions.
2. Very Good: Outstanding light performance with slight variations.
3. Good: Good balance of brilliance and value.
4. Fair: Reduced sparkle due to less precise proportions.
5. Poor: Limited brilliance because of improper cutting.

Factors Affecting Cut Quality

1. Proportions: Table size, depth, and angles.
2. Symmetry: Precision in facet alignment.
3. Polish: Surface finish that enhances brilliance.

Diamond Clarity Explained

Clarity measures the presence of natural internal inclusions and external blemishes formed during the diamond's creation. Diamonds with fewer inclusions are generally rarer and more valuable.

Clarity Grading Scale

• FL (Flawless): No inclusions or blemishes under 10x magnification.
• IF (Internally Flawless): No internal inclusions.
• VVS1/VVS2: Very, very slight inclusions.
• VS1/VS2: Very slight inclusions.
• SI1/SI2: Slight inclusions visible under magnification.
• I1/I2/I3: Inclusions visible to the naked eye.

Diamond Color Explained

Natural diamond color is graded from D (completely colorless) to Z (light yellow or brown). The less color present, the rarer and more valuable the diamond.

Color Grading Scale

• D–F (Colorless): Exceptional white appearance.
• G–H (Near Colorless): Slight traces of color, excellent value.
• I–J (Faint Color): Slight warmth visible.
• K–Z (Light Yellow/Brown): Increasing levels of color.

Diamond Carat Weight Explained

Carat is the standard unit used to measure a diamond's weight. One carat equals 200 milligrams. While larger diamonds are rarer, overall beauty and value are determined by the balance of all four Cs—Cut, Color, Clarity, and Carat Weight.