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The Art of Choosing a Natural Diamond

Looking for the Perfect Natural Diamond? Start with the 4Cs

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The 4 C's

The 4Cs—Cut, Color, Clarity, and Carat Weight—are the universal standards used to evaluate a diamond's quality and value. Introduced by the Gemological Institute of America (GIA) in the 1940s, the 4Cs brought transparency and consistency to diamond grading, helping buyers make informed decisions. Today, understanding the 4Cs is essential for choosing a natural diamond that offers the perfect balance of beauty, rarity, and value.

Diamond Essentials

Cut

The cut determines how effectively a diamond reflects light, creating brilliance, fire, and sparkle. A well-cut diamond will appear more vibrant and beautiful, regardless of its size.

 

Clarity

Clarity refers to the natural inclusions and blemishes found within a diamond. These unique characteristics make every natural diamond one of a kind while contributing to its authenticity and value.

 

Colour

Diamond colour measures the absence of colour, with colourless diamonds being the rarest and most valuable. Even subtle differences in colour can influence a diamond's appearance and worth.

 

Carat

Carat is the unit used to measure a diamond's weight. While larger diamonds are rarer, a diamond's beauty depends on the perfect balance of all four Cs, not carat weight alone.

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Anjanee Diamonds Co Ltd

 +66 81 583 1300

1249/78 Gems Tower, Room 78G-4,

9th Floor, Charoenkrung Road,

Suriyawong, Bang Rak, Bangkok 10500

© 2026 by Anjanee Diamonds Co Ltd

 

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