The 4cs guide

Right before you decide to buy that special someone a ring that symbolizes your long-lasting commitment, you just might want to consider the 4C's. A quality diamond that will stand the test of time and keep both you and your partner smiling must be measured by Cut, Carat, Color and Clarity.


Diamond shapes

Today there are an amazing variety of diamond shapes to choose from. This will make your ring truly an original work of art when you select the exact diamond shape that fits your taste. Every diamond shape possesses its own unique charm, so it’s wise to take your time and learn about each of the shapes so you can settle on what you really like. At Best Brilliance, you know each diamond no matter what the shape will be of the finest quality, with its own certificate. Now all you have to do is decide which of these beautiful diamond shapes are perfect for you.

A round or brilliant cut diamond is the most popular diamond shape of all time for engagement rings. The cone-shaped pavilion (or underside) maximizes light return back through the top of the diamond. A brilliant cut has 58 facets: 33 on the crown (top) and 25 below (the pavilion). The relationship between the angles of the crown (the part you see on top of the diamond) and the pavilion (or underside) was expertly thought out for maximized brilliance. A well formed brilliant cut diamond produces dramatic scintillation—and that’s exactly what shoppers are looking for. Think of all the possibilities this diamond shape offers for many of the latest style engagement rings.

Princess cut diamonds are perfectly suited for engagement rings since they are very modern and a popular choice with younger brides today. Their exquisite shape makes them an exotic eye-catcher as they are designed to produce top brilliance via their square cut. When purchasing a princess cut diamond, make sure that the setting for your ring protects the four pointed corners. The versatile princess cut diamond allows for countless opportunities to pair it with a variety of ring styles.

The oval cut diamond is similar to the most popular cut, a round brilliant, but the elongated outline is an interesting variation. With some of the same facet pattern traits as a round diamond, it has the capacity to sparkle plenty. So it is a perfect choice for someone looking for characteristics similar to a round cut with its highly reflective facets but with a more unusual overall shape. Oval cut diamonds accentuate the wearer’s lovely hands and serve to elongate her fingers.

The elegant marquise cut diamond is an eye shaped—or football shaped brilliant stone considered to be one of the all time classic shapes for a stylish lady’s diamond engagement ring. It is actually a fancy cut diamond, so color and clarity are two key qualities to look for with this diamond. A marquise cut diamond features some facet design similar to that of a round brilliant diamond, but the stone maximizes its carat weight by the elongated ends and its distinctive eye or football shape. Ladies who favor this diamond cut may also gravitate to vintage jewelry styles because the marquise diamond has been a popular diamond shape in antique and vintage jewelry long ago.

The heart shaped diamond is a romantic shape of diamond. This universally recognized symbol of love has a facet pattern created for spectacular fire and brilliance. When selecting a heart shaped diamond, look for symmetry on both sides of the heart shape itself; the two halves of the heart must be mirror images of the other. The cleft of the heart at the top should be graceful and sharply defined. The wings (the rounded outside part) should have a pleasing curve. When mounting your heart shaped diamond, a three pronged setting or even a bezel will look best for this shape. This diamond heart shape will always symbolize the tender feelings of love and devotion.

The cushion cut diamond is an earlier classic cut originating nearly two centuries ago, with tremendous romantic appeal today. The well liked square shape gets a masterful touch with the delicately rounded corners. Some diamond lovers recognize antique cuts like the Old Mine Cut, popular in the late 19th to early 20th centuries, and the modern Oval Cut Diamond as being blended to form today’s popular cushion cut. Today’s Cushion Cut Diamond contains 58 facets like a round brilliant but delivers the exclusive appeal of a specialized diamond shape. Whether chosen as a solitaire in a simple ring, or set as the star of a diamond accented mounting, this shape offers the personalized look that many brides favor today.

The pear shaped diamond combines the tradition and brilliance of a round cut with a less common tear shape to create an unusual diamond that can still make light 'dance' as it does in the traditional round brilliant cut. It has aspects of both the round and the marquise diamond cut. This cut is probably the most subjective diamond shape, as its size and proportions are really a matter of taste. The diamond usually contains 58 facets, allowing for light to pass through it much the same way as in a Round, but makes a big statement because of its uncommon and dramatic shape.

The radiant cut diamond combines the stylish square or rectangular shape with the brilliance found in the more traditional round cut. By combining two diamond cutting styles, the round cut and the emerald cut, it creates a non-traditional looking, yet remarkably brilliant, diamond. This lively cut, created in 1977 was designed to maintain the beauty of each different type of diamond, while still creating something altogether new and exciting for diamond collectors.

The emerald cut diamond is considered a connoisseur’s cut; a popular style often selected for high clarity diamonds. What it lacks in fire that appears in other diamond cuts, it more than makes up for in its elegant facet design. Emerald cut diamonds reminds one of gazing into crystal clear ice. The emerald cut, or step cut was originally used only with emeralds. But today, it’s considered one of the best uses for very high clarity stones, especially those that have a square shaped crystal. Your emerald cut solitaire will dazzle onlookers with its icy clear appeal.

The Asscher cut diamond, first created in 1902 was sometimes earlier called a square emerald cut; created by making a step-cut facet design with its distinct cropped corners. At first glance an Asscher cut diamond appears almost octagonal until you have a closer look at the striking details. Like emerald cut diamonds, an Asscher cut will have remarkable clarity allowing you to see into the stone. Since any inclusions can be seen by the naked eye with this cut, it is advisable to select this stone with the highest clarity grade as possible. Whether you select an Asscher cut diamond as a solitaire, or the central stone in a more decorative ring, you’ll have a show-stopper earning you lots of compliments.



No two diamonds are exactly alike; and these differences are celebrated as making each diamond its own rare beauty. However all diamonds share certain traits. The crystal rough of the diamond helps determine its eventual structure and proportion which all contributes to its brilliance, dispersion and scintillation. Each diamond part has a specific name. Understanding how each part contributes to the beauty of the polished diamond as a whole will aid you in finding your perfect diamond.


A polished stone's width, measured from edge to edge


The largest polished facet located on the top (usually center) of a diamond


The top part of a diamond which is visible in its setting


The widest edge creating a circumference around the diamond where the crown and pavilion meet


The underside of a diamond extending from the girdle of its culet


The entire height of a diamond measured from table to the cule


The small often pointed facet at the very bottom of the diamond

Metals Guide

Like diamonds, the precious metals used to make your engagement rings and wedding bands are also natural wonders

How to Buy an
Engagement Ring

Deciding on what ring type to get may seem like a daunting task because there are so many available today.

How are your
diamonds made?

Learn how your diamonds are being carefully handcrafted.

Clarity Enhanced

It is truly rare when diamonds are mined from the ground and found without imperfections.

What is a diamond


A diamond certificate is a document created by an independent gemological laboratory that reports and verifies a specific diamond’s unique information including its color grade, carat weight, clarity grade and cut grade. You should always review the diamond’s certificate prior to purchasing it. There are several well-known gem labs in the United States. Among the most well-known grading laboratories in the world is the International Gemological Appraisers (IGA LABS) which provides a comprehensive report for each of the diamonds it independently examines.

Each diamond certificate indicates certain traits found in every stone. A diamond's value and ultimately its cost are determined by objective characteristics referred to as the 4Cs: Color, Clarity, Cut and Carat. Each component is valuable of course, but the total value of a diamond is the sum total of all of its four characteristics considered in context to each other. Many consumers might assume that carat weight is the most valuable of the 4Cs, but color, cut and clarity actually contribute greater to the appearance of a diamond.



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