It is not easy to get close to buying a diamond, preferably of a "carat", within the limits of the amount available. In fact, beyond the size, expressed in carats, the value of a diamond depends on the color, the perfection - or lack of defects - and the cut - which gives it brilliance.
Another rule to take into consideration is that there are no "opportunities" when buying a diamond, moreover it is always good to deal only with serious companies.
Most diamonds have imperfections – small carbon bubbles, bits of foreign matter, internal striations or cracks; if these blemishes are too small to see with the naked eye, they result in less impairment. That's why to avoid incurring surprises, you should always contact a trusted jeweler or even better a gemologist, who can tell how serious the imperfections are. Any diamond with visible imperfections, no matter how big and shiny it may be, is not a good investment.
Perfect diamonds of several carats are rare diamonds, therefore considering their peculiarity, in all likelihood they can be bought against the risks of inflation and political instability.
The perfect color of a rare diamond, like the lack of blemishes, is a clear absence of color like ice. However, there are colored diamonds, which reflect light in a range of more iridescent and brighter tones. In fact there are diamonds with unusual colors, pink, blue, green or purple, and this increases their rarity. The famous Hope diamond, permanently exhibited at the Smithsonian Institute in Washington, is a gem of an intense blue colour.
However, no compromise is allowed in the quality of the cut or facet of a diamond. A cut made to perfection must give shape to a diamond and have facets - the flat surfaces on which the light reflects - in order to obtain the highest degree of brilliance and fire from the stone, which has the power unique ability to trap light rays to break them down into all the colors of the rainbow. The proportion of each facet was mathematically calculated and established by physicist Marcel Tolkowsky in 1919. If a diamond is not in good shape, or if it has been faceted without careful care, the light escapes, dampening its brilliance and refractive power.
Diamond cuts are different, each of which has 58 facets. Each cut has a plank – the flat top facet – and a culasse or point – the bottom facet. The other 56 facets are arranged in a precise order above and below the girdle and 24 below. Shuttle, heart, teardrop and oval diamonds are all faceted the same way. The emerald-cut one is a rectangular stone with 24 facets above the girdle, eight more arranged around the girdle and 24 below.
A rough diamond loses at least half of its original size after it is cut and faceted. Once it is cut and polished, its shine and brilliance last forever.
Eternal beauty that in 1477 became the symbol of eternal love between Maximilian I of Austria and Mary of Burgundy. Diamonds, being composed of crystalline carbon, the hardest substance known, never become dull or wear away with use. They are a safe investment even if it is necessary – before making any choice – to apply all the rules and characteristics expressed.
Diamonds are mainly mined from deposits in South Africa, West Africa and Siberia. So if a diamond is chosen wisely it will always be considered a good investment, regardless of fashions.
The list of cut diamonds is the Rapaport Diamond Report which created RapNet, one of the platforms where the largest number of diamonds in the world transit.
