A Diamond within the Rough – Diamond Grading


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Diamonds – Diamond Jewellery

Diamond may be the hardest mineral available. This, coupled with its natural lustre, brilliant fire when polished and it is rarity allow it to be probably the most valuable of gemstones.

Diamonds form under extremes of temperature and pressure at 50miles or even more underneath the Earth’s surface. Initially, the primary producers were India and South america but many of their diamonds originated from secondary deposits for example river gravels following the diamonds have been bought towards the surface the natural way.

Because the discovery of diamonds within the kimberlite rock in Nigeria around 1870, diamonds happen to be found a lot more extensively. Today, diamond mining involves processing huge amount of rock.

Roughly 250 a lot of kimberlite ore should be found and processed to create one carat of polished diamond of jewel quality. This really is partially why diamonds are extremely costly, however this is simply the start of process through which the diamond becomes a part of a bit of jewellery.

In the mine, the diamonds need to be sorted, cut and polished, adding value towards the diamond along each stage from the process. Before these last processes, the rough diamond looks as being a pebble. It’s the skill from the diamond cutters and polishers which unlocks the fiery great thing about the diamond.

The good thing about a diamond depends in route it reflects and refracts light. The best cut gemstones reflect just as much light from the top stone as you possibly can passing on the unmistakable fire and brilliance connected most abundant in beautiful gem in the world.

Diamond Grading

Diamonds are graded through the four C’s Carat, Cut, Colour and Clearness.


Basically this is actually the physical weight from the diamond. A 1 carat diamond will weigh .2g. You have to be cautious however to not confuse carat with how big the diamond, they’ll be a correlation but it’ll also rely on the standard and form of the cut.


The cut of the diamond may be the component that is directly affected by man, it is crucial as it can certainly take into account around 40% from the diamonds cost! The ‘cut’ refers back to the proportions and symmetry from the diamond a thing that necessitates the skills of the experienced gem builder, like a poorly cut stone will lack brilliance and fire.

Diamonds have to be cut to master proportions to make sure that just as much light as you possibly can is reflected from the top stone. A diamond that’s cut too deep or too shallow will forfeit light through the foot of stone, diminishing its sparkle. This will make it the polisher’s skill that determines be it full beauty is released.

There are various types of diamond cut, with a few of the standard ones the following:

Brilliant Cut

Princess Cut

Marquise Cut

Pear Cut

Emerald Cut

Baguette Cut

Probably the most popular cut for diamond rings has been and try to would be the round Brilliant Cut. With fifty seven facets on its surface it possesses a fantastic look that never dates. Princess Cut diamonds provide the same sparkling look that round Brilliant Cut diamonds offer however with a rather more contemporary square look. Marquise and Pear Cut gemstones provide a great variation fit and Emerald and Baguette Cut diamonds exude finesse using their simple look and stunning rectangular, angled look.


A diamonds colour plays a significant part both in its cost and it is beauty. The color of diamonds can differ hugely from white-colored (completely colourless) right through to strong yellow, it’s however unusual that the diamond is discovered to be totally colourless. The closer a diamond would be to being totally colourless the greater valuable it might be, although it may be tough to determine the real colour instantly because of interfering factors for example ambient lighting.

‘Fancy’ coloured diamonds can be found for example pink and blue, however these are very rare and costly!


Almost all diamonds contain small flaws or inclusions for example air bubbles, cracks, scratches etc. Nearly all inclusions aren’t visible towards the human eye alone and wish magnification. These flaws could make every diamond unique however the less you will find the greater valuable the diamond.

Additional factors which also affects the need for the diamond are in which the inclusions are located and how visible they’re – a fissure deep inside the diamond won’t be as essential as one present close to the surface for apparent reasons.

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