There are some facts that we should take into account before choose a diamond.the basic things that we want to know about diamond is that not all diamonds are equal they are differ and unique. They can be differ by shapes, colours, sizes and with various internal characteristics.
A polished diamond has its value. The value decides with some factors. Rarity is one of these factors. Diamonds with certain qualities are more hence they are valuable than others
there are some systematic way to evaluate every diamond. If this lacks, there would be no way no way to compare one diamond to another and evaluate the qualities of an individual diamond. The grading system by GIA from 1950’s are used by the Professionals. Main factors taken into account were clarity, colour, cut and carat weight for describing quality of diamond.
Colour
Difference in colour affect diamond value if two diamonds with same clarity, weight, cut can differ in value based on colour alone. Colour less diamonds are very rare. Most of the diamonds have tints of yellow or brown hence slightest colour change can make a vast change in diamond’s value.
Clarity
Diamonds with clarity is the relative absence of inclusions blemishes. The internal features are called inclusions and surface irregularities are called blemishes. Blemishes include scratches and nicks on a diamond surface and inclusions are generally inside, these can be breaking surface of the stone or minerals trapped inside while forming them.
Clarity not only have negative influence but also have positive effects such as helping geologists separate diamond from imitations.
Cut
Its purely the craft man’s skill and care. When light falls on the diamonds from every angle and every facet affects the amount of light returned to the eye. This is what it its face-up appearance. In efforts to differentiate themselves, and because increasing demand for precision in cutting, many manufacturers fashioned diamonds to exacting standards through out the decade.
Carat weight
every thing we buy depends upon weight, thus diamonds also depending on weight. Diamonds are weighed on unit metric carat they are 0.2 gram or 0.007 ounce. One ounce contains 142 carats.
The weight is not only the factor that depends the value hence it is not easy to collect their value based on weight only. 1kg sugar 40 rupees then 2kg sugar will worth rupees 40 this is usual but in the case of diamonds it is different a diamond same properties and double the weight can have value more than the double of the smaller. This is because the large diamonds are more scarce than the smaller.the scarce something worth more.
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Agate stone is a verity of silica, Which is characterised on the basis of its fineness of grain and brightness of colour. These are mainly found with kinds of rocks such as classically in volcanic rocks and commonly in some metamorphic rocks.