A diamond is pure or nearly pure carbon, blessed with three extraordinary qualities.
First, a diamond owns unique powers of light reflection. When cut properly, it gathers light within itself, and sends it back in a shower of fire and brilliance.
Second, it is the only gem mineral composed of a single, unadulterated element, making it the purest of earth’s gemstones.
Third, it is the hardest transparent substance known to man. Steel cannot cut a diamond. The only natural material that can cut a diamond is another diamond.
It is fitting that the purest and most brilliant of all the world’s stones should also be the most enduring. These qualities make a diamond ring the perfect symbol of engagement.
Every diamond is utterly unique, and all the critical qualities of your diamond should be certified in writing. At the Diamond Showcase, every solitaire diamond is accompanied by certified picture appraisal done by a graduate GIA gemologist that includes the clarity, colour and carat weight.
The gemological institute of America (GIA) has devised a grading system for diamonds that has been adopted worldwide by all jewellery professionals. This grading system has been coined the Four C’s which covers the four characteristics of Diamonds namely: Cut, Colour, Clarity and Carat Weight. Each of these four characteristics can dramatically influence the price of a diamond.
Cut determines the brilliance of a Diamond. In order to maximize this brilliance, the diamond cutter must place each of the stone’s facets, which act as light dispersing mirrors, in geometric relation to one another. On a classic round brilliant cut diamond 58 facets must be aligned.
Clarity refers to the number of identifying characteristics in a diamond. The fewer the inclusions, the clearer the diamond. All clarity is determined with viewing under a standard 10 – power jeweller’s loupe. In virtually all diamonds it is possible to find minute crystals, feathers and clouds that are more commonly referred to as inclusions or birth marks.
Colour quality is critical. A more colourless the diamond, increases its rarity and value. Most diamonds used in jewellery appear colourless or clear to the eye, yet with few exceptions, all diamonds have a tinge of body colour. In the accepted colour rating scale used by The Gemological Institute of America, a colourless diamond is classified as “D”. All other diamonds are ranked below this in the alphabet, with “e” being the next best colour and so on. A single increase in colour grade can boost a diamond’s value by many hundreds or even thousands of dollars, depending on the stone’s size.
Carat Weight is the gemologist’s standard measure of a diamond’s size. Each carat is divided into 100 points. It is important to note that all diamonds are priced per carat, taking into consideration the quality. Because the rarity of diamonds increases with size, so does their price per carat. Therefore, a one carat diamond costs more than twice as much as a half carat diamond of the same quality.