Why Diamond Education Matters

Understanding the core aspects of a diamond helps you make confident and informed decisions. From the sparkle of the cut to the rarity of clarity and color, this guide breaks down everything you need to know about diamonds before you choose the one that’s right for you.

The 4Cs That Define Diamond Quality

  • Cut

    The cut determines how a diamond reflects light—affecting sparkle and brilliance. Excellent cuts shine the brightest.

  • Clarity

    Clarity refers to internal flaws (inclusions) and external marks (blemishes). Higher clarity = fewer imperfections.

  • Color

    Diamonds range from colorless (D) to yellow (Z). The less color, the more rare and valuable.

  • Carat

    Carat refers to a diamond’s weight. Bigger isn't always better—balance size with cut and clarity.

Always Look for Diamond Certification


A certified diamond provides peace of mind. Independent labs like GIA or IGI assess diamonds for quality and authenticity. At Terra Amour, every diamond comes with a certificate, so you know exactly what you're buying.

Tips for Choosing the Perfect Diamond

Are lab-grown diamonds real diamonds?

Yes! Lab-grown diamonds have the same chemical, physical, and optical properties as mined diamonds.

Which of the 4Cs is most important?

Cut is considered the most critical because it impacts how much a diamond sparkles.

What is a good clarity for everyday wear?

VS1–VS2 or SI1 clarity diamonds offer a clean look without the premium price.