Four C's of Diamonds

Understanding the Four Cs of Diamonds with Zavius Jewelers

At Zavius Jewelers, we specialize in helping you understand the intricate details of diamond quality through the Four Cs: Color, Clarity, Cut, and Carat Weight. Our expert team, with over 35 years of experience serving the Rockford, IL community, is here to guide you in selecting the perfect diamond. Whether you are looking for a stunning engagement ring or a timeless piece of jewelry, our certified estate jeweler appraisers and a master jeweler ensure you receive the highest quality and service.

  • Color Grading

    A row of diamonds with the word colorless on the bottom

    Diamonds are graded on their absence of color using the GIA’s D-to-Z scale. This measures how colorless a diamond is by comparing it to established master stones, with D representing completely colorless and Z indicating noticeable color.

  • Clarity Evaluation

    A picture of a diamond with the word flawless on it

    We assess the number, size, and type of internal inclusions and external blemishes in a diamond. Higher clarity indicates fewer and less noticeable imperfections, resulting in a more visually appealing stone.

  • Cut Assessment

    A screenshot of a website showing two different types of diamonds.

    We evaluate how well a diamond’s facets interact with light, focusing on proportions, symmetry, and polish. This ensures optimal brilliance and sparkle, highlighting the diamond’s natural beauty.

  • Carat Measurement

    Carat measurement chart

    We measure a diamond's weight with precision, noting that one carat equals 200 milligrams. Diamonds are graded to the hundredth decimal place, with weights expressed in both carats and points, ensuring accurate and detailed documentation of each stone.

Visit us now to explore our diamond collection and services.


Benefits of Choosing Zavius Jewelers

Selecting Zavius Jewelers for your diamond needs ensures you receive unparalleled expertise and service. Our long-standing reputation and commitment to quality set us apart.


  • Expert redesigning of jewelry
  • Certified estate jeweler appraisers
  • Over 35 years in the Rockford, IL community
  • Respected master jeweler in the industry
  • Established business since 1990
  • Convenient delivery and shipping options


Get in touch with us to experience the benefits firsthand.


Contact Us

For more information on the Four Cs of Diamonds and to explore our exquisite collection, contact Zavius Jewelers. Our team is dedicated to helping you find the perfect diamond that meets your needs and exceeds your expectations.

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