Buying a diamond does not have to be a daunting experience. Our Diamond Knowledge Centre is designed to give you all the information you need to purchase with confidence. Check out a series of areas you should watch out for including our helpful Diamond Clarity Chart.
Finding ‘the one’
Every diamond is unique. There are a variety of factors which affect the price of a diamond. Choose what is most important to you. We will advise you along the way, to help find the best diamond to suit you.
Choosing a Shape
When choosing a diamond, your most important choice to make is the shape. Every person has a diamond shape preference so try and take into account the personality and preferences of the person wearing the ring. The classic and popular brilliant (round) diamond is often favoured due its maximum sparkle and brilliance. Princess diamonds are the next popular, offering the brilliance of a round diamond at a lower price. Cushion, asschers and emerald diamonds offer elegance and geometric beauty and are popular among those who are a lovers of the vintage and romantic styles. Heart shaped diamonds enable you to express your sentiment openly and are often favoured by the die-hard romantics.
CHOOSING THE SIZE AND QUALITY
The Four C’s
Once you’ve chosen the shape, the size of the diamond is the second most visually obvious characteristic. Size is referred to as carat, which is a unit of weight: one carat is equal to 0.2 grams, about the same weight as a paperclip. A carat is divided into 100 points. For example, a 50-point diamond weighs 0.50 carats.
The quality of the diamond is split into three characteristics: colour, cut and clarity. Diamond colour is based on absence of colour. Their value is determined by how closely they approach colourlessness: the whiter the diamond, the higher the value. Diamond colour is graded by GIA’s colour scale, which runs from D, representing colourless, down to Z which is considered light yellow. To the untrained eye, many of these colour distinctions are very subtle and invisible to the naked eye. Fancy coloured diamonds are exempt from this.
DIAMOND CLARITY CHART
Diamond Clarity refers to the absence of inclusions (internal marks) and blemishes (external marks) found within the diamond. These birthmarks are the result of carbon being exposed to extremely high heat and pressure from deep in the earth while the diamond is forming. Diamond Clarity is graded based on the size, number and position of these two characteristics and how it affects the overall appearance. A flawless diamond is considered to have no internal or external marks. We recommend choosing a diamond that is ‘eye clean’.
Diamond clarity grading is split into 5 categories:
|IF||(Internally Flawless)||No inclusions, blemishes are only visible to a skilled grader using 10x magnification|
|VVS1/VVS2||(Very, Very Slightly Included)||Inclusions difficult for a skilled grader to see under 10x magnification|
|VS1/VS2||(Very Slightly Included)||Inclusions are visible clearly under 10x magnification but can be characterised as minor|
|SI1/SI2||(Slightly Included)||Inclusions are noticeable to a skilled grader using 10 x magnification|
|I1/I2/I3||(Included)||Inclusions are obvious under 10 x magnification and may affect transparency and brilliance|
When choosing a brilliant (round) diamond, there is another characteristic which is important to note. Diamond cut determines the sparkle and brilliance of the diamond. An excellent or very good cut will give a diamond a beautiful sparkle. The better the cut, the more light that can enter the diamond. It is easier to assess the cut on a round diamond, but for other shapes, there is no grading as it is subjective.
Here at Diamond Secret, we only use the best quality, certified Diamond rings and jewellery. Should you require a lower grade or quality due to your budget, please contact us.
What is a diamond?
Diamond is the crystallised form of carbon. Carbon crystallises in a cubic system which is the strongest and most symmetrical known on Earth, and is born hundreds of miles below the Earth’s surface. Diamonds were formed more than 70 million years ago when diamond-bearing ore was brought to the surface through volcanic eruption. After the magma cooled, it solidified into blue ground, or kimberlite, where the precious rough is found today.
Today, the conditions that spawned diamonds in the Earth’s depths can be reproduced in a lab. Lab-grown diamonds are actual diamonds, made up of crystallised carbon just like their natural cousins. Lab-grown diamonds are not simulants like cubic zirconia or moissanite. Lab grown diamonds have the durability or luster of actual diamonds and retain their brilliance forever.
The durability of a gem depends on both its hardness and toughness. Diamond, although highest on the scale of hardness (rated 10 on the Mohs scale), is not as tough as some gems because of its good cleavage. (Cleavage is the tendency of a diamond to split in certain directions where the carbon atoms are furthest apart.) Diamonds have a very high degree of transparency, refractivity and dispersion or ‘fire’ which gives rise in cut diamonds to a high degree of brilliancy and a display of prismatic colours. A diamond’s fiery brilliance makes it cherished above all other gemstones by the majority of people. Diamonds occupy a position of incomparable demand.