Diamond Grading

Diamonds are the one of the true wonders of nature, created deep within mother earth herself over billions of years.  Like us, every one is unique with its own personal characteristics just waiting to amaze you.  To own Diamonds is a true treasure in life, to wear Diamonds is a experience.  Many People buy Diamonds as a symbol of Love, to bring romance, passion and joy when celebrating an occasion such as your engagement, your wedding, the birth of your children or for an anniversary.  Diamonds have mesmerizing beauty and more often we buy them because we love to wear them!

The Four C's
Every diamond is unique, reflecting the story of its arduous journey from deep inside the earth to a cherished object of adornment. Yet all diamonds share certain features that allow us to compare and evaluate them. These features are called the 4Cs.

The Clarity Scale includes eleven clarity grades ranging from Flawless to I3. Because diamonds form under conditions of tremendous heat and pressure, internal inclusions and external blemishes are common and help gemologists identify individual stones. The Clarity Scale also helps separate natural diamonds from synthetics.

Carat Weight:
One carat equals 0.2 grams. For diamonds under a carat, each carat is divided into 100 points, similar to pennies in a dollar. For instance, 0.75ct. = 75 points and 1/2 ct. = 50 points.


The Color Scale extends from D (colorless) to Z (light yellow or brown). Although many people think of diamonds as colorless, most diamonds used in jewelry have subtle tints of yellow or brown. Each letter grade represents a range of color and is a measure of the degree of color within the diamond, all measured by comparing the diamond to a set of master stones.

Diamond Colour

A polished diamond's proportions affect the performance and interplay of light which, in turn, affects its beauty and desirability. Brightness is the combination of all white light reflecting from both the surface and interior of a diamond. Fire describes the colored flashes that can be seen in a diamond. And scintillation is the sparkle of light you see and the overall pattern of bright and dark areas when you look at a diamond face-up. The design and craftsmanship of a diamond also affect its cut quality, and these factors are considered in determining a diamond's Excellent-to-Poor Cut Grade.

Diamond Dimensions

Diamond Shapes

The classic diamond is, to most people, a round gem of sparkling white brilliance with a kaleidoscope of dazzling facets to entice the eye.  Yes and no. Diamonds are natural crystals of varying size and shape formed in the earth over millions of years. The traditional round brilliant diamond, though the most popular diamond shape of all, is hardly the whole story.  By the diamond cutter's art these crystals are carved into gems of spectacular and whimsical beauty. A cutter's skill will produce a diamond of the greatest size with the fewest flaws and the most brilliance.

Round Brilliant Diamonds

This shape has set the standard for all other diamond shapes, and accounts for more than 75% of diamonds sold today. Its 58-facet cut, divided among its crown (top), girdle (widest part) and pavilion  (base), is calibrated through a precise formula to achieve the maximum in fire and brilliance.

Oval Diamonds

 An even, perfectly symmetrical design popular among women with small hands or short fingers. Its elongated shape gives a flattering illusion of length to the hand.

Marquise Diamonds

An elongated shape with pointed ends inspired by the fetching smile of the Marquise de Pompadour and commissioned by the Sun King, France's Louis XIV, who wanted a diamond to match it. It is gorgeous when used as a solitaire or when enhanced by smaller diamonds.

Pear Shaped Diamonds

A hybrid cut, combining the best of the oval and the marquise, it is shaped most like a sparkling teardrop. It also belongs to that category of diamond whose design most complements a hand with small or average-length fingers. It is particularly beautiful for pendants or earrings.

Heart Shaped Diamonds

This ultimate symbol of romance is essentially a pear-shaped diamond with a cleft at the top. The skill of the cutter determines the beauty of the cut. Look for a stone with an even shape and a well-defined outline

Emerald Cut Diamond

This is a rectangular shape with cut corners. It is known as a step cut because its concentric broad, flat planes resemble stair steps. Since inclusions and inferior color are more pronounced in this particular cut, take pains to select a stone of superior clarity and color.

Princess Cut Diamond

This is a square or rectangular cut with numerous sparkling facets. It is a relatively new cut and often finds its way into solitaire engagement rings. Flattering to a hand with long fingers, it is often embellished with triangular stones at its sides. Because of its design, this cut requires more weight to be directed toward the diamond's depth in order to maximize brilliance. Depth percentages of 70% to 78% are not uncommon.

Trilliant Diamonds

This is a spectacular wedge of brittle fire. First developed in Amsterdam, the exact design can vary depending on a particular diamond's natural characteristics and the cutter's personal preferences. It may be a traditional triangular shape with pointed corners or a more rounded triangular shape with 25 facets on the crown, 19 facets on the pavilion, and a polished girdle. It is definitely for the adventurous.

Radiant Cut Diamond

This square or rectangular cut combines the elegance of the emerald shape diamond with the brilliance of the round, and its 70 facets maximize the effect of its color refraction. Because of its design, this cut requires more weight to be directed toward the diamond's depth in order to maximize brilliance. Depth percentages of 70% to 78% are not uncommon.

Cushion Cut Diamond

An antique style of cut that looks like a cross between an Old Mine Cut (a deep cut with large facets that was common in the late 10th and early 20th centuries) and a modern oval cut.

The shape of things to come in diamonds has already produced other fanciful and innovative styles such as the flower, cloverleaf, triangle and kite. Nor does it stop there. Some cuts are variations on standard shapes, others spin off the natural crystal formation of the stone, and still others take the idea of shape to revolutionary new heights. Individuality and taste determine the fashion, and the magic of the gem cutter transforms each stone into a unique work of art.

Diamond Characteristics

Cherubs Jewellery supports the initiative of the United Nations and the World Diamond Council (The Kimberley Process) to prevent conflict diamonds from entering the legitimate supply chains of the jewellery industry.
The Kimberley Process Certification Scheme ensures that mining of diamonds is strictly supervised at government level and that legitimately mined diamonds, in their “rough” state (before cutting and polishing) are only transferred between participating countries under strictly monitored conditions, in tamper proof containers, and accompanied by the appropriate documentation.
To ensure that only these legitimate diamonds, when cut and polished, pass into the jewellery manufacturing process.  We participate in the system of warranties and code of conduct issued by the World Diamond Council on 29 October 2002
Our invoices for Diamond jewellery Purchases will include the following text.
The diamonds herein invoiced have been purchased from legitimate sources not involved in funding conflict and in compliance with United Nations resolutions. The seller hereby guarantees that these diamonds are conflict free, based on personal knowledge and/or written guarantees provided by the supplier of these diamonds.