Diamond Education

CALVIN’S is dedicated to you! Since 1997, we've been building lasting relationships with all our customers to help you make the best possible decisions for you and your jewelry. We know your jewelry can become lasting family heirlooms, and we want to help you learn how to care for your jewelry and your diamonds so they can last for generations. Explore our diamond education page to find out more. Want to learn how to best care for your jewelry? Visit Jewelry Care Guide

SHOP DIAMONDS BY SHAPE

  • Round

    ROUND

  • Oval

    OVAL

  • Pear

    PEAR

  • Marquise

    MARQUISE

  • Princess

    PRINCESS

  • Radiant

    RADIANT

  • Emerald

    EMERALD

  • Asscher

    ASSCHER

  • Cushion

    CUSHION

The 4 C’s of Diamonds

The quality of a diamond is evaluated using 4 primary characteristics known as the 4C'S - cut, color, clarity and carat. There is a wide range of diamond sizes and qualities available within any given budget. The challenge is to determine which of the 4C's is most important to you in order to narrow this range so you can make the best choice.

CUT

The cut of a diamond determines its brilliance and sparkle. Cut is important because it is a direct indication of the brilliance and sparkle of a diamond. Diamonds with perfect clarity or color but which are badly cut can appear dull and lifeless, but finely cut diamonds can in many cases be brilliant even if with average or below average color and clarity. The better the cut, the more rare and the more valuable is the diamond.


COLOR

The color of a diamond results from light passing through chemical impurities and/or defects is the crystalline structure. These inclusions alter the amount of light absorption pattern so that color is visible to the human eye. While diamonds come in many colors and many hues, the most common color and hue is yellow. The amount of yellow hue is graded according to a scale which ranks rewards the lack of color with the highest letter grades and which ranges from D (colorless) to Z (heavy yellow). Diamond whose color is beyond Z are denoted as "fancy" diamonds and are graded using their own scale and terminology. The purer and more intense the color, the rarer and more valuable is the diamond.


CLARITY

The clarity of a diamond is a measure of the number and type of inclusions within the diamond and on its surface. The fewer the inclusions visible under a 10X magnifier, the higher the clarity grade which ranges from flawless to heavily included..


CARAT

The term "carat" refers to the weight and size of a diamond. The value of a diamond rises exponentially with its size. Most diamonds fall in between 0.01 carat and 1.00 in size. Put another way, that range is between a hundredth of a carat and a full carat in weight.