Your Guide To Diamonds

Before you start diamond shopping, you want to have an understanding of what you're buying. This guide simplifies the four Cs of diamonds cut, color, clarity, and carat weight, so you can select your diamond based on the same criteria jewelers use to grade them. After reading through this guide, you'll be ready to choose the diamond that's right for you.


It's fairly common to confuse a diamond's cut with its shape. The cut describes a diamond's light performance, dimensions and finish. Shape refers to the overall outline of the diamond when viewed from the top. Round is far and away the most popular diamond shape.


The cut of a diamond has the most effect on its sparkle, or brilliance. Even if the diamond has perfect color and clarity, a poor cut can make a diamond look dull. Jacob Ruth & Co. carries only the highest grades of diamond cut, for the most sparkle. Learn how to choose the right diamond cut with the most brilliance for your budget.


Diamonds with very little color are the most highly valued and are priced accordingly. A little color can diminish a diamond's brilliance. To help you choose the most brilliant diamond, we offer diamonds with the highest grades of color. Learn how to choose a diamond with no color noticeable to the unaided eye.


Diamonds with few flaws, or inclusions, are very rare and highly valued. Clarity is graded based on the number, location, size, and type of the inclusions found in a diamond. Jacob Ruth & Co. has some of the clearest diamonds available. Learn how to choose the right grade of clarity for your diamond.

Carat Weight

The weight of a diamond is measured in carats. Since larger diamonds are more rare than smaller diamonds, diamond value tends to rise exponentially with carat weight. Read more about carat weight and learn how to balance diamond quality with the size of your diamond.


The most important step in choosing a diamond is reviewing the diamond certificate, referred to by diamond grading labs as a grading report. A grading report documents the characteristics of a diamond, like the four Cs. Before purchasing a diamond, review a copy of its grading report, as this is proof that it has undergone an unbiased, professional examination. Learn more about the diamond grading report.

Diamond Care

Many people think diamonds are indestructible, but they do require care. Read how to keep your diamond sparkling, and securely set in your ring.

Gregg Helfer Ltd. Policy On Conflict Diamonds

All Gregg Helfer Ltd. diamonds are warrantied to be conflict free. Read more about Gregg Helfer Ltd.'s policy on conflict diamonds and the steps we take to ensure our diamonds are from conflict free sources.